version: bump up to 3.5.3

Merge pull request #13938 from endocrimes/dani/backport
[backport] PR 13923 to release-3.5
2022-04-13 17:17:51 +02:00 · 2022-04-13 15:15:59 +02:00 · 2022-04-13 12:41:24 +00:00 · 2022-04-13 12:39:06 +00:00 · 2022-04-12 11:55:46 +02:00 · 2022-04-12 10:46:55 +02:00
197 changed files with 4445 additions and 1895 deletions
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@ -13,7 +13,7 @@ jobs:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
-        go-version: "^1.16"
+        go-version: "1.16.15"
    - run: date
    - env:
        TARGET: ${{ matrix.target }}
--- a/.github/workflows/functional.yaml
+++ b/.github/workflows/functional.yaml
@ -12,7 +12,7 @@ jobs:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
-        go-version: "^1.16"
+        go-version: "1.16.15"
    - run: date
    - env:
        TARGET: ${{ matrix.target }}
--- a/.github/workflows/grpcproxy.yaml
+++ b/.github/workflows/grpcproxy.yaml
@ -12,7 +12,7 @@ jobs:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
-        go-version: "^1.16"
+        go-version: "1.16.15"
    - run: date
    - env:
        TARGET: ${{ matrix.target }}
--- a/.github/workflows/self-hosted-linux-arm64-graviton2-tests.yml
+++ b/.github/workflows/self-hosted-linux-arm64-graviton2-tests.yml
@ -1,19 +0,0 @@
-name: Linux ARM64 Graviton2
-on: [push, pull_request]
-
-jobs:
-  test:
-    runs-on: [self-hosted, linux, ARM64, graviton2]
-    steps:
-      - uses: actions/checkout@v2
-      - name: install dependencies
-        run: |
-          sudo amazon-linux-extras install epel
-          sudo yum install -y git gcc ShellCheck
-      - uses: actions/setup-go@v2
-        with:
-          go-version: "^1.16"
-      - run: go version
-      - run: date
-      - name: Run tests
-        run: TEST_OPTS="PASSES='fmt bom dep build unit integration_e2e'" make test
--- a/.github/workflows/self-hosted-linux-arm64-graviton2-tests.yml.md
+++ b/.github/workflows/self-hosted-linux-arm64-graviton2-tests.yml.md
@ -1,142 +0,0 @@
-
-## Graviton-based self-hosted github action worker
-
-### Step 1. Create an EC2 instance with Graviton
-
-Create an AWS Graviton-based EC2 instance. For example,
-
-```
-# or download from https://github.com/aws/aws-k8s-tester/releases
-cd ${HOME}/go/src/github.com/aws/aws-k8s-tester
-go install -v ./cmd/ec2-utils
-
-# create arm64 AL2 instance
-AWS_K8S_TESTER_EC2_ON_FAILURE_DELETE=true \
-AWS_K8S_TESTER_EC2_LOG_COLOR=true \
-AWS_K8S_TESTER_EC2_REGION=us-west-2 \
-AWS_K8S_TESTER_EC2_S3_BUCKET_CREATE=true \
-AWS_K8S_TESTER_EC2_S3_BUCKET_CREATE_KEEP=true \
-AWS_K8S_TESTER_EC2_REMOTE_ACCESS_KEY_CREATE=true \
-AWS_K8S_TESTER_EC2_ASGS_FETCH_LOGS=false \
-AWS_K8S_TESTER_EC2_ASGS='{"GetRef.Name-arm64-al2-cpu":{"name":"GetRef.Name-arm64-al2-cpu","remote-access-user-name":"ec2-user","ami-type":"AL2_arm_64","image-id-ssm-parameter":"/aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-arm64-gp2","instance-types":["m6g.xlarge"],"volume-size":40,"asg-min-size":1,"asg-max-size":1,"asg-desired-capacity":1}}' \
-AWS_K8S_TESTER_EC2_ROLE_CREATE=true \
-AWS_K8S_TESTER_EC2_VPC_CREATE=true \
-ec2-utils create instances --enable-prompt=true --auto-path
-```
-
-### Step 2. Install github action on the host
-
-SSH into the instance, and install the github action self-hosted runner (see [install scripts](https://github.com/etcd-io/etcd/settings/actions/runners/new?arch=arm64&os=linux)).
-
-### Step 3. Configure github action on the host
-
-SSH into the instance, and configure the github action self-hosted runner.
-
-First, we need disable ICU install (see [actions/runner issue on ARM64](https://github.com/actions/runner/issues/629)):
-
-```
-sudo yum install -y patch
-```
-
-And write this bash script:
-
-```
-#!/bin/bash -e
-
-patch -p1 <<ICU_PATCH
-diff -Naur a/bin/Runner.Listener.runtimeconfig.json b/bin/Runner.Listener.runtimeconfig.json
--- a/bin/Runner.Listener.runtimeconfig.json	2020-07-01 02:21:09.000000000 +0000
-+++ b/bin/Runner.Listener.runtimeconfig.json	2020-07-28 00:02:38.748868613 +0000
-@@ -8,7 +8,8 @@
-       }
-     ],
-     "configProperties": {
-      "System.Runtime.TieredCompilation.QuickJit": true
-+      "System.Runtime.TieredCompilation.QuickJit": true,
-+      "System.Globalization.Invariant": true
-     }
-   }
-}
-\ No newline at end of file
-+}
-diff -Naur a/bin/Runner.PluginHost.runtimeconfig.json b/bin/Runner.PluginHost.runtimeconfig.json
--- a/bin/Runner.PluginHost.runtimeconfig.json	2020-07-01 02:21:22.000000000 +0000
-+++ b/bin/Runner.PluginHost.runtimeconfig.json	2020-07-28 00:02:59.358680003 +0000
-@@ -8,7 +8,8 @@
-       }
-     ],
-     "configProperties": {
-      "System.Runtime.TieredCompilation.QuickJit": true
-+      "System.Runtime.TieredCompilation.QuickJit": true,
-+      "System.Globalization.Invariant": true
-     }
-   }
-}
-\ No newline at end of file
-+}
-diff -Naur a/bin/Runner.Worker.runtimeconfig.json b/bin/Runner.Worker.runtimeconfig.json
--- a/bin/Runner.Worker.runtimeconfig.json	2020-07-01 02:21:16.000000000 +0000
-+++ b/bin/Runner.Worker.runtimeconfig.json	2020-07-28 00:02:19.159028531 +0000
-@@ -8,7 +8,8 @@
-       }
-     ],
-     "configProperties": {
-      "System.Runtime.TieredCompilation.QuickJit": true
-+      "System.Runtime.TieredCompilation.QuickJit": true,
-+      "System.Globalization.Invariant": true
-     }
-   }
-}
-\ No newline at end of file
-+}
-ICU_PATCH
-```
-
-And now patch the github action runner:
-
-```
-cd ${HOME}/actions-runner
-bash patch.sh
-```
-
-```
-patching file bin/Runner.Listener.runtimeconfig.json
-patching file bin/Runner.PluginHost.runtimeconfig.json
-patching file bin/Runner.Worker.runtimeconfig.json
-```
-
-And now configure:
-
-```
-sudo yum install -y wget
-INSTANCE_ID=$(wget -q -O - http://169.254.169.254/latest/meta-data/instance-id)
-echo ${INSTANCE_ID}
-
-# get token from https://github.com/etcd-io/etcd/settings/actions/runners/new?arch=arm64&os=linux
-cd ${HOME}/actions-runner
-./config.sh \
--work "_work" \
--name ${INSTANCE_ID} \
--labels self-hosted,linux,ARM64,graviton2 \
--url https://github.com/etcd-io/etcd \
--token ...
-```
-
-And run:
-
-```
-# run this as a process in the terminal
-cd ${HOME}/actions-runner
-./run.sh
-
-# or run this as a systemd service
-cd ${HOME}/actions-runner
-sudo ./svc.sh install
-sudo ./svc.sh start
-sudo ./svc.sh status
-```
-
-### Step 4. Create github action configuration
-
-See https://github.com/etcd-io/etcd/pull/12928.
-
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@ -18,7 +18,7 @@ jobs:
    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
-        go-version: "^1.16"
+        go-version: "1.16.15"
    - run: date
    - env:
        TARGET: ${{ matrix.target }}
--- a/.travis.yml
+++ b/.travis.yml
@ -6,7 +6,7 @@ sudo: required
 services: docker

 go:
-  - "1.16.3"
+  - "1.16.15"
  - tip

 notifications:
@ -21,14 +21,14 @@ env:
 matrix:
  fast_finish: true
  allow_failures:
-    - go: "1.16.3"
+    - go: "1.16.15"
      env: TARGET=linux-amd64-coverage
    - go: tip
      env: TARGET=linux-amd64-fmt-unit-go-tip-2-cpu
  exclude:
    - go: tip
      env: TARGET=linux-amd64-coverage
-    - go: "1.16.3"
+    - go: "1.16.15"
      env: TARGET=linux-amd64-fmt-unit-go-tip-2-cpu

 before_install:
--- a/Dockerfile-release.amd64
+++ b/Dockerfile-release.amd64
@ -1,4 +1,5 @@
-FROM k8s.gcr.io/build-image/debian-base:buster-v1.4.0
+# TODO: move to k8s.gcr.io/build-image/debian-base:bullseye-v1.y.z when patched
+FROM debian:bullseye-20220328

 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
--- a/Dockerfile-release.arm64
+++ b/Dockerfile-release.arm64
@ -1,4 +1,5 @@
-FROM k8s.gcr.io/build-image/debian-base-arm64:buster-v1.4.0
+# TODO: move to k8s.gcr.io/build-image/debian-base-arm64:bullseye-1.y.z when patched
+FROM arm64v8/debian:bullseye-20220328

 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
--- a/Dockerfile-release.ppc64le
+++ b/Dockerfile-release.ppc64le
@ -1,4 +1,5 @@
-FROM k8s.gcr.io/build-image/debian-base-ppc64le:buster-v1.4.0
+# TODO: move to k8s.gcr.io/build-image/debian-base-ppc64le:bullseye-1.y.z when patched
+FROM ppc64le/debian:bullseye-20220328

 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
--- a/Dockerfile-release.s390x
+++ b/Dockerfile-release.s390x
@ -1,4 +1,5 @@
-FROM k8s.gcr.io/build-image/debian-base-s390x:buster-v1.4.0
+# TODO: move to k8s.gcr.io/build-image/debian-base-s390x:bullseye-1.y.z when patched
+FROM s390x/debian:bullseye-20220328

 ADD etcd /usr/local/bin/
 ADD etcdctl /usr/local/bin/
--- a/7
+++ b/7
@ -55,7 +55,7 @@ docker-remove:



-GO_VERSION ?= 1.16.3
+GO_VERSION ?= 1.16.15
 ETCD_VERSION ?= $(shell git rev-parse --short HEAD || echo "GitNotFound")

 TEST_SUFFIX = $(shell date +%s | base64 | head -c 15)
@ -161,7 +161,10 @@ test-full:
 	$(info log-file: test-$(TEST_SUFFIX).log)
 	PASSES="fmt build release unit integration functional e2e grpcproxy" ./test.sh 2<&1 | tee test-$(TEST_SUFFIX).log

-docker-test:
+ensure-docker-test-image-exists:
+	make pull-docker-test || echo "WARNING: Container Image not found in registry, building locally"; make build-docker-test
+
+docker-test: ensure-docker-test-image-exists
 	$(info GO_VERSION: $(GO_VERSION))
 	$(info ETCD_VERSION: $(ETCD_VERSION))
 	$(info TEST_OPTS: $(TEST_OPTS))
--- a/api/go.mod
+++ b/api/go.mod
@ -7,8 +7,9 @@ require (
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/protobuf v1.5.2
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0
-	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
-	google.golang.org/grpc v1.37.0
+	google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c
+	google.golang.org/grpc v1.38.0
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )

 // Bad imports are sometimes causing attempts to pull that code.
--- a/api/go.sum
+++ b/api/go.sum
@ -51,6 +51,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@ -58,8 +59,11 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -69,8 +73,9 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 h1:4nGaVu0QrbjT/AK2PRLuQfQuh6DJve+pELhqTdAj3x0=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -79,23 +84,31 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
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+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -106,15 +119,16 @@ google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -129,7 +143,8 @@ google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/l
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3 h1:fvjTMHxHEw/mxHbtzPi3JCcKXQRAnQTBRo6YCJSVHKI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/api/v3rpc/rpctypes/error.go
+++ b/api/v3rpc/rpctypes/error.go
@ -58,12 +58,14 @@ var (
 	ErrGRPCRoleNotFound         = status.New(codes.FailedPrecondition, "etcdserver: role name not found").Err()
 	ErrGRPCRoleEmpty            = status.New(codes.InvalidArgument, "etcdserver: role name is empty").Err()
 	ErrGRPCAuthFailed           = status.New(codes.InvalidArgument, "etcdserver: authentication failed, invalid user ID or password").Err()
+	ErrGRPCPermissionNotGiven   = status.New(codes.InvalidArgument, "etcdserver: permission not given").Err()
 	ErrGRPCPermissionDenied     = status.New(codes.PermissionDenied, "etcdserver: permission denied").Err()
 	ErrGRPCRoleNotGranted       = status.New(codes.FailedPrecondition, "etcdserver: role is not granted to the user").Err()
 	ErrGRPCPermissionNotGranted = status.New(codes.FailedPrecondition, "etcdserver: permission is not granted to the role").Err()
 	ErrGRPCAuthNotEnabled       = status.New(codes.FailedPrecondition, "etcdserver: authentication is not enabled").Err()
 	ErrGRPCInvalidAuthToken     = status.New(codes.Unauthenticated, "etcdserver: invalid auth token").Err()
 	ErrGRPCInvalidAuthMgmt      = status.New(codes.InvalidArgument, "etcdserver: invalid auth management").Err()
+	ErrGRPCAuthOldRevision      = status.New(codes.InvalidArgument, "etcdserver: revision of auth store is old").Err()

 	ErrGRPCNoLeader                   = status.New(codes.Unavailable, "etcdserver: no leader").Err()
 	ErrGRPCNotLeader                  = status.New(codes.FailedPrecondition, "etcdserver: not leader").Err()
@ -73,6 +75,7 @@ var (
 	ErrGRPCTimeout                    = status.New(codes.Unavailable, "etcdserver: request timed out").Err()
 	ErrGRPCTimeoutDueToLeaderFail     = status.New(codes.Unavailable, "etcdserver: request timed out, possibly due to previous leader failure").Err()
 	ErrGRPCTimeoutDueToConnectionLost = status.New(codes.Unavailable, "etcdserver: request timed out, possibly due to connection lost").Err()
+	ErrGRPCTimeoutWaitAppliedIndex    = status.New(codes.Unavailable, "etcdserver: request timed out, waiting for the applied index took too long").Err()
 	ErrGRPCUnhealthy                  = status.New(codes.Unavailable, "etcdserver: unhealthy cluster").Err()
 	ErrGRPCCorrupt                    = status.New(codes.DataLoss, "etcdserver: corrupt cluster").Err()
 	ErrGPRCNotSupportedForLearner     = status.New(codes.Unavailable, "etcdserver: rpc not supported for learner").Err()
@ -130,6 +133,7 @@ var (
 		ErrorDesc(ErrGRPCAuthNotEnabled):       ErrGRPCAuthNotEnabled,
 		ErrorDesc(ErrGRPCInvalidAuthToken):     ErrGRPCInvalidAuthToken,
 		ErrorDesc(ErrGRPCInvalidAuthMgmt):      ErrGRPCInvalidAuthMgmt,
+		ErrorDesc(ErrGRPCAuthOldRevision):      ErrGRPCAuthOldRevision,

 		ErrorDesc(ErrGRPCNoLeader):                   ErrGRPCNoLeader,
 		ErrorDesc(ErrGRPCNotLeader):                  ErrGRPCNotLeader,
@ -194,6 +198,7 @@ var (
 	ErrPermissionNotGranted = Error(ErrGRPCPermissionNotGranted)
 	ErrAuthNotEnabled       = Error(ErrGRPCAuthNotEnabled)
 	ErrInvalidAuthToken     = Error(ErrGRPCInvalidAuthToken)
+	ErrAuthOldRevision      = Error(ErrGRPCAuthOldRevision)
 	ErrInvalidAuthMgmt      = Error(ErrGRPCInvalidAuthMgmt)

 	ErrNoLeader                   = Error(ErrGRPCNoLeader)
@ -204,6 +209,7 @@ var (
 	ErrTimeout                    = Error(ErrGRPCTimeout)
 	ErrTimeoutDueToLeaderFail     = Error(ErrGRPCTimeoutDueToLeaderFail)
 	ErrTimeoutDueToConnectionLost = Error(ErrGRPCTimeoutDueToConnectionLost)
+	ErrTimeoutWaitAppliedIndex    = Error(ErrGRPCTimeoutWaitAppliedIndex)
 	ErrUnhealthy                  = Error(ErrGRPCUnhealthy)
 	ErrCorrupt                    = Error(ErrGRPCCorrupt)
 	ErrBadLeaderTransferee        = Error(ErrGRPCBadLeaderTransferee)
--- a/api/version/version.go
+++ b/api/version/version.go
@ -26,7 +26,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.5.0-beta.3"
+	Version           = "3.5.3"
 	APIVersion        = "unknown"

 	// Git SHA Value will be set during build
--- a/client/pkg/go.mod
+++ b/client/pkg/go.mod
@ -3,8 +3,7 @@ module go.etcd.io/etcd/client/pkg/v3
 go 1.16

 require (
-	github.com/coreos/go-systemd/v22 v22.3.1
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
+	github.com/coreos/go-systemd/v22 v22.3.2
+	go.uber.org/zap v1.17.0
 	golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57
-	google.golang.org/grpc v1.37.0
 )
--- a/client/pkg/go.sum
+++ b/client/pkg/go.sum
@ -1,96 +1,28 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
-github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
-github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
-github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
-github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
-github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
-github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
-github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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-github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
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 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
-golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
-golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
-golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 h1:F5Gozwx4I1xtr/sr/8CFbb57iKi3297KFs0QDbGN60A=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
-golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
-google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
-google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
-google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
-google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
-google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/client/pkg/logutil/zap.go
+++ b/client/pkg/logutil/zap.go
@ -21,6 +21,17 @@ import (
 	"go.uber.org/zap/zapcore"
 )

+// CreateDefaultZapLogger creates a logger with default zap configuration
+func CreateDefaultZapLogger(level zapcore.Level) (*zap.Logger, error) {
+	lcfg := DefaultZapLoggerConfig
+	lcfg.Level = zap.NewAtomicLevelAt(level)
+	c, err := lcfg.Build()
+	if err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
 // DefaultZapLoggerConfig defines default zap logger configuration.
 var DefaultZapLoggerConfig = zap.Config{
 	Level: zap.NewAtomicLevelAt(ConvertToZapLevel(DefaultLogLevel)),
--- a/client/pkg/logutil/zap_grpc.go
+++ b/client/pkg/logutil/zap_grpc.go
@ -1,111 +0,0 @@
-// Copyright 2018 The etcd Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package logutil
-
-import (
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-	"google.golang.org/grpc/grpclog"
-)
-
-// NewGRPCLoggerV2 converts "*zap.Logger" to "grpclog.LoggerV2".
-// It discards all INFO level logging in gRPC, if debug level
-// is not enabled in "*zap.Logger".
-func NewGRPCLoggerV2(lcfg zap.Config) (grpclog.LoggerV2, error) {
-	lg, err := lcfg.Build(zap.AddCallerSkip(1)) // to annotate caller outside of "logutil"
-	if err != nil {
-		return nil, err
-	}
-	return &zapGRPCLogger{lg: lg, sugar: lg.Sugar()}, nil
-}
-
-// NewGRPCLoggerV2FromZapCore creates "grpclog.LoggerV2" from "zap.Core"
-// and "zapcore.WriteSyncer". It discards all INFO level logging in gRPC,
-// if debug level is not enabled in "*zap.Logger".
-func NewGRPCLoggerV2FromZapCore(cr zapcore.Core, syncer zapcore.WriteSyncer) grpclog.LoggerV2 {
-	// "AddCallerSkip" to annotate caller outside of "logutil"
-	lg := zap.New(cr, zap.AddCaller(), zap.AddCallerSkip(1), zap.ErrorOutput(syncer)).Named("grpc")
-	return &zapGRPCLogger{lg: lg, sugar: lg.Sugar()}
-}
-
-type zapGRPCLogger struct {
-	lg    *zap.Logger
-	sugar *zap.SugaredLogger
-}
-
-func (zl *zapGRPCLogger) Info(args ...interface{}) {
-	if !zl.lg.Core().Enabled(zapcore.DebugLevel) {
-		return
-	}
-	zl.sugar.Info(args...)
-}
-
-func (zl *zapGRPCLogger) Infoln(args ...interface{}) {
-	if !zl.lg.Core().Enabled(zapcore.DebugLevel) {
-		return
-	}
-	zl.sugar.Info(args...)
-}
-
-func (zl *zapGRPCLogger) Infof(format string, args ...interface{}) {
-	if !zl.lg.Core().Enabled(zapcore.DebugLevel) {
-		return
-	}
-	zl.sugar.Infof(format, args...)
-}
-
-func (zl *zapGRPCLogger) Warning(args ...interface{}) {
-	zl.sugar.Warn(args...)
-}
-
-func (zl *zapGRPCLogger) Warningln(args ...interface{}) {
-	zl.sugar.Warn(args...)
-}
-
-func (zl *zapGRPCLogger) Warningf(format string, args ...interface{}) {
-	zl.sugar.Warnf(format, args...)
-}
-
-func (zl *zapGRPCLogger) Error(args ...interface{}) {
-	zl.sugar.Error(args...)
-}
-
-func (zl *zapGRPCLogger) Errorln(args ...interface{}) {
-	zl.sugar.Error(args...)
-}
-
-func (zl *zapGRPCLogger) Errorf(format string, args ...interface{}) {
-	zl.sugar.Errorf(format, args...)
-}
-
-func (zl *zapGRPCLogger) Fatal(args ...interface{}) {
-	zl.sugar.Fatal(args...)
-}
-
-func (zl *zapGRPCLogger) Fatalln(args ...interface{}) {
-	zl.sugar.Fatal(args...)
-}
-
-func (zl *zapGRPCLogger) Fatalf(format string, args ...interface{}) {
-	zl.sugar.Fatalf(format, args...)
-}
-
-func (zl *zapGRPCLogger) V(l int) bool {
-	// infoLog == 0
-	if l <= 0 { // debug level, then we ignore info level in gRPC
-		return !zl.lg.Core().Enabled(zapcore.DebugLevel)
-	}
-	return true
-}
--- a/client/pkg/logutil/zap_grpc_test.go
+++ b/client/pkg/logutil/zap_grpc_test.go
@ -1,91 +0,0 @@
-// Copyright 2018 The etcd Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package logutil
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-)
-
-func TestNewGRPCLoggerV2(t *testing.T) {
-	logPath := filepath.Join(os.TempDir(), fmt.Sprintf("test-log-%d", time.Now().UnixNano()))
-	defer os.RemoveAll(logPath)
-
-	lcfg := zap.Config{
-		Level:       zap.NewAtomicLevelAt(zap.InfoLevel),
-		Development: false,
-		Sampling: &zap.SamplingConfig{
-			Initial:    100,
-			Thereafter: 100,
-		},
-		Encoding:         "json",
-		EncoderConfig:    DefaultZapLoggerConfig.EncoderConfig,
-		OutputPaths:      []string{logPath},
-		ErrorOutputPaths: []string{logPath},
-	}
-	gl, err := NewGRPCLoggerV2(lcfg)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// debug level is not enabled,
-	// so info level gRPC-side logging is discarded
-	gl.Info("etcd-logutil-1")
-	data, err := ioutil.ReadFile(logPath)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if bytes.Contains(data, []byte("etcd-logutil-1")) {
-		t.Fatalf("unexpected line %q", string(data))
-	}
-
-	gl.Warning("etcd-logutil-2")
-	data, err = ioutil.ReadFile(logPath)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !bytes.Contains(data, []byte("etcd-logutil-2")) {
-		t.Fatalf("can't find data in log %q", string(data))
-	}
-	if !bytes.Contains(data, []byte("logutil/zap_grpc_test.go:")) {
-		t.Fatalf("unexpected caller; %q", string(data))
-	}
-}
-
-func TestNewGRPCLoggerV2FromZapCore(t *testing.T) {
-	buf := bytes.NewBuffer(nil)
-	syncer := zapcore.AddSync(buf)
-	cr := zapcore.NewCore(
-		zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
-		syncer,
-		zap.NewAtomicLevelAt(zap.InfoLevel),
-	)
-
-	lg := NewGRPCLoggerV2FromZapCore(cr, syncer)
-	lg.Warning("TestNewGRPCLoggerV2FromZapCore")
-	txt := buf.String()
-	if !strings.Contains(txt, "TestNewGRPCLoggerV2FromZapCore") {
-		t.Fatalf("unexpected log %q", txt)
-	}
-}
--- a/client/pkg/srv/srv.go
+++ b/client/pkg/srv/srv.go
@ -106,9 +106,10 @@ func GetClient(service, domain string, serviceName string) (*SRVClients, error)
 			return err
 		}
 		for _, srv := range addrs {
+			shortHost := strings.TrimSuffix(srv.Target, ".")
 			urls = append(urls, &url.URL{
 				Scheme: scheme,
-				Host:   net.JoinHostPort(srv.Target, fmt.Sprintf("%d", srv.Port)),
+				Host:   net.JoinHostPort(shortHost, fmt.Sprintf("%d", srv.Port)),
 			})
 		}
 		srvs = append(srvs, addrs...)
--- a/client/pkg/srv/srv_test.go
+++ b/client/pkg/srv/srv_test.go
@ -226,8 +226,8 @@ func TestSRVDiscover(t *testing.T) {
 		},
 		{
 			[]*net.SRV{
-				{Target: "a.example.com", Port: 2480},
-				{Target: "b.example.com", Port: 2480},
+				{Target: "a.example.com.", Port: 2480},
+				{Target: "b.example.com.", Port: 2480},
 				{Target: "c.example.com", Port: 2480},
 			},
 			[]*net.SRV{},
--- a/client/pkg/testutil/leak.go
+++ b/client/pkg/testutil/leak.go
@ -16,6 +16,8 @@ import (
 	"time"
 )

+// TODO: Replace with https://github.com/uber-go/goleak.
+
 /*
 CheckLeakedGoroutine verifies tests do not leave any leaky
 goroutines. It returns true when there are goroutines still
@ -28,10 +30,9 @@ running(leaking) after all tests.
 	}

 	func TestSample(t *testing.T) {
-		BeforeTest(t)
+		RegisterLeakDetection(t)
 		...
 	}
-
 */
 func CheckLeakedGoroutine() bool {
 	gs := interestingGoroutines()
@ -94,22 +95,22 @@ func CheckAfterTest(d time.Duration) error {
 	return fmt.Errorf("appears to have leaked %s:\n%s", bad, stacks)
 }

-// BeforeTest is a convenient way to register before-and-after code to a test.
-// If you execute BeforeTest, you don't need to explicitly register AfterTest.
-func BeforeTest(t TB) {
+// RegisterLeakDetection is a convenient way to register before-and-after code to a test.
+// If you execute RegisterLeakDetection, you don't need to explicitly register AfterTest.
+func RegisterLeakDetection(t TB) {
 	if err := CheckAfterTest(10 * time.Millisecond); err != nil {
 		t.Skip("Found leaked goroutined BEFORE test", err)
 		return
 	}
 	t.Cleanup(func() {
-		AfterTest(t)
+		afterTest(t)
 	})
 }

-// AfterTest is meant to run in a defer that executes after a test completes.
+// afterTest is meant to run in a defer that executes after a test completes.
 // It will detect common goroutine leaks, retrying in case there are goroutines
 // not synchronously torn down, and fail the test if any goroutines are stuck.
-func AfterTest(t TB) {
+func afterTest(t TB) {
 	// If test-failed the leaked goroutines list is hidding the real
 	// source of problem.
 	if !t.Failed() {
--- a/client/pkg/testutil/leak_test.go
+++ b/client/pkg/testutil/leak_test.go
@ -35,7 +35,7 @@ func TestMain(m *testing.M) {

 func TestSample(t *testing.T) {
 	SkipTestIfShortMode(t, "Counting leaked routines is disabled in --short tests")
-	defer AfterTest(t)
+	defer afterTest(t)
 	ranSample = true
 	for range make([]struct{}, 100) {
 		go func() {
--- a/client/v2/go.mod
+++ b/client/v2/go.mod
@ -3,10 +3,10 @@ module go.etcd.io/etcd/client/v2
 go 1.16

 require (
-	github.com/json-iterator/go v1.1.10
+	github.com/json-iterator/go v1.1.11
 	github.com/modern-go/reflect2 v1.0.1
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
 )

 replace (
--- a/client/v2/go.sum
+++ b/client/v2/go.sum
@ -8,7 +8,7 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -43,8 +43,8 @@ github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
-github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11 h1:uVUAXhF2To8cbw/3xN3pxj6kk7TYKs98NIrTqPlMWAQ=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
@ -59,14 +59,15 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@ -74,8 +75,11 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -86,6 +90,7 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -94,22 +99,30 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -120,12 +133,13 @@ google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoA
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -139,7 +153,12 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3 h1:fvjTMHxHEw/mxHbtzPi3JCcKXQRAnQTBRo6YCJSVHKI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/client/v3/client.go
+++ b/client/v3/client.go
@ -24,6 +24,7 @@ import (
 	"time"

 	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	"go.etcd.io/etcd/client/v3/credentials"
 	"go.etcd.io/etcd/client/v3/internal/endpoint"
 	"go.etcd.io/etcd/client/v3/internal/resolver"
@ -184,7 +185,9 @@ func (c *Client) Sync(ctx context.Context) error {
 	}
 	var eps []string
 	for _, m := range mresp.Members {
-		eps = append(eps, m.ClientURLs...)
+		if len(m.Name) != 0 && !m.IsLearner {
+			eps = append(eps, m.ClientURLs...)
+		}
 	}
 	c.SetEndpoints(eps...)
 	return nil
@ -296,9 +299,7 @@ func (c *Client) dial(creds grpccredentials.TransportCredentials, dopts ...grpc.
 		dctx, cancel = context.WithTimeout(c.ctx, c.cfg.DialTimeout)
 		defer cancel() // TODO: Is this right for cases where grpc.WithBlock() is not set on the dial options?
 	}
-
-	initialEndpoints := strings.Join(c.cfg.Endpoints, ";")
-	target := fmt.Sprintf("%s://%p/#initially=[%s]", resolver.Schema, c, initialEndpoints)
+	target := fmt.Sprintf("%s://%p/%s", resolver.Schema, c, authority(c.Endpoints()[0]))
 	conn, err := grpc.DialContext(dctx, target, opts...)
 	if err != nil {
 		return nil, err
@ -306,6 +307,20 @@ func (c *Client) dial(creds grpccredentials.TransportCredentials, dopts ...grpc.
 	return conn, nil
 }

+func authority(endpoint string) string {
+	spl := strings.SplitN(endpoint, "://", 2)
+	if len(spl) < 2 {
+		if strings.HasPrefix(endpoint, "unix:") {
+			return endpoint[len("unix:"):]
+		}
+		if strings.HasPrefix(endpoint, "unixs:") {
+			return endpoint[len("unixs:"):]
+		}
+		return endpoint
+	}
+	return spl[1]
+}
+
 func (c *Client) credentialsForEndpoint(ep string) grpccredentials.TransportCredentials {
 	r := endpoint.RequiresCredentials(ep)
 	switch r {
@ -356,7 +371,10 @@ func newClient(cfg *Config) (*Client, error) {
 	} else if cfg.LogConfig != nil {
 		client.lg, err = cfg.LogConfig.Build()
 	} else {
-		client.lg, err = createDefaultZapLogger()
+		client.lg, err = logutil.CreateDefaultZapLogger(etcdClientDebugLevel())
+		if client.lg != nil {
+			client.lg = client.lg.Named("etcd-client")
+		}
 	}
 	if err != nil {
 		return nil, err
--- a/client/v3/client_test.go
+++ b/client/v3/client_test.go
@ -17,13 +17,14 @@ package clientv3
 import (
 	"context"
 	"fmt"
-	"go.uber.org/zap"
 	"net"
 	"testing"
 	"time"

+	"go.etcd.io/etcd/api/v3/etcdserverpb"
 	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
 	"go.etcd.io/etcd/client/pkg/v3/testutil"
+	"go.uber.org/zap"
 	"go.uber.org/zap/zaptest"

 	"google.golang.org/grpc"
@ -35,7 +36,7 @@ func NewClient(t *testing.T, cfg Config) (*Client, error) {
 }

 func TestDialCancel(t *testing.T) {
-	testutil.BeforeTest(t)
+	testutil.RegisterLeakDetection(t)

 	// accept first connection so client is created with dial timeout
 	ln, err := net.Listen("unix", "dialcancel:12345")
@ -87,7 +88,7 @@ func TestDialCancel(t *testing.T) {
 }

 func TestDialTimeout(t *testing.T) {
-	testutil.BeforeTest(t)
+	testutil.RegisterLeakDetection(t)

 	wantError := context.DeadlineExceeded

@ -198,3 +199,49 @@ func TestZapWithLogger(t *testing.T) {
 		t.Errorf("WithZapLogger should modify *zap.Logger")
 	}
 }
+
+func TestSyncFiltersMembers(t *testing.T) {
+	c, _ := NewClient(t, Config{Endpoints: []string{"http://254.0.0.1:12345"}})
+	defer c.Close()
+	c.Cluster = &mockCluster{
+		[]*etcdserverpb.Member{
+			{ID: 0, Name: "", ClientURLs: []string{"http://254.0.0.1:12345"}, IsLearner: false},
+			{ID: 1, Name: "isStarted", ClientURLs: []string{"http://254.0.0.2:12345"}, IsLearner: true},
+			{ID: 2, Name: "isStartedAndNotLearner", ClientURLs: []string{"http://254.0.0.3:12345"}, IsLearner: false},
+		},
+	}
+	c.Sync(context.Background())
+
+	endpoints := c.Endpoints()
+	if len(endpoints) != 1 || endpoints[0] != "http://254.0.0.3:12345" {
+		t.Error("Client.Sync uses learner and/or non-started member client URLs")
+	}
+}
+
+type mockCluster struct {
+	members []*etcdserverpb.Member
+}
+
+func (mc *mockCluster) MemberList(ctx context.Context) (*MemberListResponse, error) {
+	return &MemberListResponse{Members: mc.members}, nil
+}
+
+func (mc *mockCluster) MemberAdd(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error) {
+	return nil, nil
+}
+
+func (mc *mockCluster) MemberAddAsLearner(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error) {
+	return nil, nil
+}
+
+func (mc *mockCluster) MemberRemove(ctx context.Context, id uint64) (*MemberRemoveResponse, error) {
+	return nil, nil
+}
+
+func (mc *mockCluster) MemberUpdate(ctx context.Context, id uint64, peerAddrs []string) (*MemberUpdateResponse, error) {
+	return nil, nil
+}
+
+func (mc *mockCluster) MemberPromote(ctx context.Context, id uint64) (*MemberPromoteResponse, error) {
+	return nil, nil
+}
--- a/client/v3/go.mod
+++ b/client/v3/go.mod
@ -5,11 +5,11 @@ go 1.16
 require (
 	github.com/dustin/go-humanize v1.0.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
-	github.com/prometheus/client_golang v1.5.1
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
-	google.golang.org/grpc v1.37.0
+	github.com/prometheus/client_golang v1.11.1
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.uber.org/zap v1.17.0
+	google.golang.org/grpc v1.38.0
 	sigs.k8s.io/yaml v1.2.0
 )

--- a/client/v3/go.sum
+++ b/client/v3/go.sum
@ -5,6 +5,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@ -18,8 +19,8 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmfM=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -33,8 +34,10 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@ -53,6 +56,7 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
@ -61,6 +65,7 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@ -68,12 +73,16 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 h1:Ovs26xHkKqVztRpIrF/92BcuyuQ/YW4NSIpoGtfXNho=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@ -87,45 +96,53 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJ
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
-github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
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 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.2.0 h1:uq5h0d+GuxiXLJLNABMgp2qUWDPiLvgCzz2dUR+/W/M=
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-github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@ -134,8 +151,11 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -146,10 +166,13 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 h1:4nGaVu0QrbjT/AK2PRLuQfQuh6DJve+pELhqTdAj3x0=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -157,28 +180,42 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 h1:F5Gozwx4I1xtr/sr/8CFbb57iKi3297KFs0QDbGN60A=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
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 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5 h1:i6eZZ+zk0SOf0xgBpEpPD18qWcJda6q1sxt3S0kzyUQ=
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 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -189,15 +226,16 @@ google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -219,8 +257,13 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
--- a/client/v3/logger.go
+++ b/client/v3/logger.go
@ -19,8 +19,8 @@ import (
 	"os"

 	"go.etcd.io/etcd/client/pkg/v3/logutil"
-	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
+	"go.uber.org/zap/zapgrpc"
 	"google.golang.org/grpc/grpclog"
 )

@ -28,14 +28,12 @@ func init() {
 	// We override grpc logger only when the environment variable is set
 	// in order to not interfere by default with user's code or other libraries.
 	if os.Getenv("ETCD_CLIENT_DEBUG") != "" {
-		// We don't use grpc_zap.ReplaceGrpcLoggerV2(lg) to not push (wide) set
-		// of grpc-ecosystem/go-grpc-middleware dependencies on etcd-client users.
-		lg, err := logutil.NewGRPCLoggerV2(createDefaultZapLoggerConfig())
+		lg, err := logutil.CreateDefaultZapLogger(etcdClientDebugLevel())
 		if err != nil {
 			panic(err)
 		}
-
-		grpclog.SetLoggerV2(lg)
+		lg = lg.Named("etcd-client")
+		grpclog.SetLoggerV2(zapgrpc.NewLogger(lg))
 	}
 }

@ -59,17 +57,3 @@ func etcdClientDebugLevel() zapcore.Level {
 	}
 	return l
 }
-
-func createDefaultZapLoggerConfig() zap.Config {
-	lcfg := logutil.DefaultZapLoggerConfig
-	lcfg.Level = zap.NewAtomicLevelAt(etcdClientDebugLevel())
-	return lcfg
-}
-
-func createDefaultZapLogger() (*zap.Logger, error) {
-	c, err := createDefaultZapLoggerConfig().Build()
-	if err != nil {
-		return nil, err
-	}
-	return c.Named("etcd-client"), nil
-}
--- a/client/v3/mirror/syncer.go
+++ b/client/v3/mirror/syncer.go
@ -18,7 +18,7 @@ package mirror
 import (
 	"context"

-	"go.etcd.io/etcd/client/v3"
+	clientv3 "go.etcd.io/etcd/client/v3"
 )

 const (
@ -52,7 +52,13 @@ func (s *syncer) SyncBase(ctx context.Context) (<-chan clientv3.GetResponse, cha

 	// if rev is not specified, we will choose the most recent revision.
 	if s.rev == 0 {
-		resp, err := s.c.Get(ctx, "foo")
+		// If len(s.prefix) == 0, we will check a random key to fetch the most recent
+		// revision (foo), otherwise we use the provided prefix.
+		checkPath := "foo"
+		if len(s.prefix) != 0 {
+			checkPath = s.prefix
+		}
+		resp, err := s.c.Get(ctx, checkPath)
 		if err != nil {
 			errchan <- err
 			close(respchan)
--- a/client/v3/op.go
+++ b/client/v3/op.go
@ -77,6 +77,9 @@ type Op struct {
 	cmps    []Cmp
 	thenOps []Op
 	elseOps []Op
+
+	isOptsWithFromKey bool
+	isOptsWithPrefix  bool
 }

 // accessors / mutators
@ -216,6 +219,10 @@ func (op Op) isWrite() bool {
 	return op.t != tRange
 }

+func NewOp() *Op {
+	return &Op{key: []byte("")}
+}
+
 // OpGet returns "get" operation based on given key and operation options.
 func OpGet(key string, opts ...OpOption) Op {
 	// WithPrefix and WithFromKey are not supported together
@ -387,6 +394,7 @@ func WithPrefix() OpOption {
 			return
 		}
 		op.end = getPrefix(op.key)
+		op.isOptsWithPrefix = true
 	}
 }

@ -406,6 +414,7 @@ func WithFromKey() OpOption {
 			op.key = []byte{0}
 		}
 		op.end = []byte("\x00")
+		op.isOptsWithFromKey = true
 	}
 }

@ -554,7 +563,21 @@ func toLeaseTimeToLiveRequest(id LeaseID, opts ...LeaseOption) *pb.LeaseTimeToLi
 }

 // IsOptsWithPrefix returns true if WithPrefix option is called in the given opts.
-func IsOptsWithPrefix(opts []OpOption) bool { return isOpFuncCalled("WithPrefix", opts) }
+func IsOptsWithPrefix(opts []OpOption) bool {
+	ret := NewOp()
+	for _, opt := range opts {
+		opt(ret)
+	}
+
+	return ret.isOptsWithPrefix
+}

 // IsOptsWithFromKey returns true if WithFromKey option is called in the given opts.
-func IsOptsWithFromKey(opts []OpOption) bool { return isOpFuncCalled("WithFromKey", opts) }
+func IsOptsWithFromKey(opts []OpOption) bool {
+	ret := NewOp()
+	for _, opt := range opts {
+		opt(ret)
+	}
+
+	return ret.isOptsWithFromKey
+}
--- a/client/v3/retry_interceptor.go
+++ b/client/v3/retry_interceptor.go
@ -73,7 +73,7 @@ func (c *Client) unaryClientInterceptor(optFuncs ...retryOption) grpc.UnaryClien
 				// its the callCtx deadline or cancellation, in which case try again.
 				continue
 			}
-			if callOpts.retryAuth && rpctypes.Error(lastErr) == rpctypes.ErrInvalidAuthToken {
+			if c.shouldRefreshToken(lastErr, callOpts) {
 				// clear auth token before refreshing it.
 				// call c.Auth.Authenticate with an invalid token will always fail the auth check on the server-side,
 				// if the server has not apply the patch of pr #12165 (https://github.com/etcd-io/etcd/pull/12165)
@ -148,6 +148,19 @@ func (c *Client) streamClientInterceptor(optFuncs ...retryOption) grpc.StreamCli
 	}
 }

+// shouldRefreshToken checks whether there's a need to refresh the token based on the error and callOptions,
+// and returns a boolean value.
+func (c *Client) shouldRefreshToken(err error, callOpts *options) bool {
+	if rpctypes.Error(err) == rpctypes.ErrUserEmpty {
+		// refresh the token when username, password is present but the server returns ErrUserEmpty
+		// which is possible when the client token is cleared somehow
+		return c.authTokenBundle != nil // equal to c.Username != "" && c.Password != ""
+	}
+
+	return callOpts.retryAuth &&
+		(rpctypes.Error(err) == rpctypes.ErrInvalidAuthToken || rpctypes.Error(err) == rpctypes.ErrAuthOldRevision)
+}
+
 // type serverStreamingRetryingStream is the implementation of grpc.ClientStream that acts as a
 // proxy to the underlying call. If any of the RecvMsg() calls fail, it will try to reestablish
 // a new ClientStream according to the retry policy.
@ -245,7 +258,7 @@ func (s *serverStreamingRetryingStream) receiveMsgAndIndicateRetry(m interface{}
 		// its the callCtx deadline or cancellation, in which case try again.
 		return true, err
 	}
-	if s.callOpts.retryAuth && rpctypes.Error(err) == rpctypes.ErrInvalidAuthToken {
+	if s.client.shouldRefreshToken(err, s.callOpts) {
 		// clear auth token to avoid failure when call getToken
 		s.client.authTokenBundle.UpdateAuthToken("")

--- a/client/v3/retry_interceptor_test.go
+++ b/client/v3/retry_interceptor_test.go
@ -0,0 +1,124 @@
+package clientv3
+
+import (
+	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
+	"go.etcd.io/etcd/client/v3/credentials"
+	grpccredentials "google.golang.org/grpc/credentials"
+	"testing"
+)
+
+type dummyAuthTokenBundle struct{}
+
+func (d dummyAuthTokenBundle) TransportCredentials() grpccredentials.TransportCredentials {
+	return nil
+}
+
+func (d dummyAuthTokenBundle) PerRPCCredentials() grpccredentials.PerRPCCredentials {
+	return nil
+}
+
+func (d dummyAuthTokenBundle) NewWithMode(mode string) (grpccredentials.Bundle, error) {
+	return nil, nil
+}
+
+func (d dummyAuthTokenBundle) UpdateAuthToken(token string) {
+}
+
+func TestClientShouldRefreshToken(t *testing.T) {
+	type fields struct {
+		authTokenBundle credentials.Bundle
+	}
+	type args struct {
+		err      error
+		callOpts *options
+	}
+
+	optsWithTrue := &options{
+		retryAuth: true,
+	}
+	optsWithFalse := &options{
+		retryAuth: false,
+	}
+
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+		want   bool
+	}{
+		{
+			name: "ErrUserEmpty and non nil authTokenBundle",
+			fields: fields{
+				authTokenBundle: &dummyAuthTokenBundle{},
+			},
+			args: args{rpctypes.ErrGRPCUserEmpty, optsWithTrue},
+			want: true,
+		},
+		{
+			name: "ErrUserEmpty and nil authTokenBundle",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCUserEmpty, optsWithTrue},
+			want: false,
+		},
+		{
+			name: "ErrGRPCInvalidAuthToken and retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCInvalidAuthToken, optsWithTrue},
+			want: true,
+		},
+		{
+			name: "ErrGRPCInvalidAuthToken and !retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCInvalidAuthToken, optsWithFalse},
+			want: false,
+		},
+		{
+			name: "ErrGRPCAuthOldRevision and retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCAuthOldRevision, optsWithTrue},
+			want: true,
+		},
+		{
+			name: "ErrGRPCAuthOldRevision and !retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCAuthOldRevision, optsWithFalse},
+			want: false,
+		},
+		{
+			name: "Other error and retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCAuthFailed, optsWithTrue},
+			want: false,
+		},
+		{
+			name: "Other error and !retryAuth",
+			fields: fields{
+				authTokenBundle: nil,
+			},
+			args: args{rpctypes.ErrGRPCAuthFailed, optsWithFalse},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c := &Client{
+				authTokenBundle: tt.fields.authTokenBundle,
+			}
+			if got := c.shouldRefreshToken(tt.args.err, tt.args.callOpts); got != tt.want {
+				t.Errorf("shouldRefreshToken() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
--- a/client/v3/snapshot/v3_snapshot.go
+++ b/client/v3/snapshot/v3_snapshot.go
@ -44,9 +44,6 @@ func hasChecksum(n int64) bool {
 // selected node, and saved snapshot is the point-in-time state of
 // the selected node.
 func Save(ctx context.Context, lg *zap.Logger, cfg clientv3.Config, dbPath string) error {
-	if lg == nil {
-		lg = zap.NewExample()
-	}
 	cfg.Logger = lg.Named("client")
 	if len(cfg.Endpoints) != 1 {
 		return fmt.Errorf("snapshot must be requested to one selected node, not multiple %v", cfg.Endpoints)
--- a/client/v3/txn_test.go
+++ b/client/v3/txn_test.go
@ -23,7 +23,7 @@ import (
 )

 func TestTxnPanics(t *testing.T) {
-	testutil.BeforeTest(t)
+	testutil.RegisterLeakDetection(t)

 	kv := &kv{}

--- a/client/v3/utils.go
+++ b/client/v3/utils.go
@ -16,9 +16,6 @@ package clientv3

 import (
 	"math/rand"
-	"reflect"
-	"runtime"
-	"strings"
 	"time"
 )

@ -32,18 +29,3 @@ func jitterUp(duration time.Duration, jitter float64) time.Duration {
 	multiplier := jitter * (rand.Float64()*2 - 1)
 	return time.Duration(float64(duration) * (1 + multiplier))
 }
-
-// Check if the provided function is being called in the op options.
-func isOpFuncCalled(op string, opts []OpOption) bool {
-	for _, opt := range opts {
-		v := reflect.ValueOf(opt)
-		if v.Kind() == reflect.Func {
-			if opFunc := runtime.FuncForPC(v.Pointer()); opFunc != nil {
-				if strings.Contains(opFunc.Name(), op) {
-					return true
-				}
-			}
-		}
-	}
-	return false
-}
--- a/etcd.conf.yml.sample
+++ b/etcd.conf.yml.sample
@ -125,6 +125,9 @@ peer-transport-security:
  # Peer TLS using generated certificates.
  auto-tls: false

+# The validity period of the self-signed certificate, the unit is year.
+self-signed-cert-validity: 1
+
 # Enable debug-level logging for etcd.
 log-level: debug

--- a/etcdctl/ctlv3/command/defrag_command.go
+++ b/etcdctl/ctlv3/command/defrag_command.go
@ -46,6 +46,7 @@ func defragCommandFunc(cmd *cobra.Command, args []string) {
 		if err != nil {
 			cobrautl.ExitWithError(cobrautl.ExitError, err)
 		}
+		return
 	}

 	failures := 0
--- a/etcdctl/ctlv3/command/ep_command.go
+++ b/etcdctl/ctlv3/command/ep_command.go
@ -22,6 +22,7 @@ import (

 	"go.etcd.io/etcd/api/v3/etcdserverpb"
 	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	v3 "go.etcd.io/etcd/client/v3"
 	"go.etcd.io/etcd/pkg/v3/cobrautl"
 	"go.etcd.io/etcd/pkg/v3/flags"
@ -88,7 +89,7 @@ type epHealth struct {

 // epHealthCommandFunc executes the "endpoint-health" command.
 func epHealthCommandFunc(cmd *cobra.Command, args []string) {
-	lg, err := zap.NewProduction()
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if err != nil {
 		cobrautl.ExitWithError(cobrautl.ExitError, err)
 	}
--- a/etcdctl/ctlv3/command/global.go
+++ b/etcdctl/ctlv3/command/global.go
@ -25,6 +25,7 @@ import (
 	"time"

 	"github.com/bgentry/speakeasy"
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	"go.etcd.io/etcd/client/pkg/v3/srv"
 	"go.etcd.io/etcd/client/pkg/v3/transport"
 	"go.etcd.io/etcd/client/v3"
@ -114,7 +115,7 @@ func (*discardValue) Set(string) error { return nil }
 func (*discardValue) Type() string     { return "" }

 func clientConfigFromCmd(cmd *cobra.Command) *clientConfig {
-	lg, err := zap.NewProduction()
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if err != nil {
 		cobrautl.ExitWithError(cobrautl.ExitError, err)
 	}
@ -193,7 +194,7 @@ func newClientCfg(endpoints []string, dialTimeout, keepAliveTime, keepAliveTimeo
 	// set tls if any one tls option set
 	var cfgtls *transport.TLSInfo
 	tlsinfo := transport.TLSInfo{}
-	tlsinfo.Logger, _ = zap.NewProduction()
+	tlsinfo.Logger, _ = logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if scfg.cert != "" {
 		tlsinfo.CertFile = scfg.cert
 		cfgtls = &tlsinfo
--- a/etcdctl/ctlv3/command/printer_json.go
+++ b/etcdctl/ctlv3/command/printer_json.go
@ -67,7 +67,7 @@ func printMemberListWithHexJSON(r clientv3.MemberListResponse) {
 	b = strconv.AppendUint(nil, r.Header.MemberId, 16)
 	buffer.Write(b)
 	buffer.WriteString("\",\"raft_term\":")
-	b = strconv.AppendUint(nil, r.Header.RaftTerm, 16)
+	b = strconv.AppendUint(nil, r.Header.RaftTerm, 10)
 	buffer.Write(b)
 	buffer.WriteByte('}')
 	for i := 0; i < len(r.Members); i++ {
--- a/etcdctl/ctlv3/command/snapshot_command.go
+++ b/etcdctl/ctlv3/command/snapshot_command.go
@ -20,6 +20,7 @@ import (
 	"os"

 	"github.com/spf13/cobra"
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	snapshot "go.etcd.io/etcd/client/v3/snapshot"
 	"go.etcd.io/etcd/etcdutl/v3/etcdutl"
 	"go.etcd.io/etcd/pkg/v3/cobrautl"
@ -98,7 +99,7 @@ func snapshotSaveCommandFunc(cmd *cobra.Command, args []string) {
 		cobrautl.ExitWithError(cobrautl.ExitBadArgs, err)
 	}

-	lg, err := zap.NewProduction()
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if err != nil {
 		cobrautl.ExitWithError(cobrautl.ExitError, err)
 	}
--- a/etcdctl/go.mod
+++ b/etcdctl/go.mod
@ -9,15 +9,15 @@ require (
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
 	github.com/urfave/cli v1.22.4
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/v2 v2.305.0-beta.3
-	go.etcd.io/etcd/client/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/etcdutl/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/pkg/v3 v3.5.0-beta.3
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.etcd.io/etcd/client/v2 v2.305.3
+	go.etcd.io/etcd/client/v3 v3.5.3
+	go.etcd.io/etcd/etcdutl/v3 v3.5.3
+	go.etcd.io/etcd/pkg/v3 v3.5.3
+	go.uber.org/zap v1.17.0
 	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
-	google.golang.org/grpc v1.37.0
+	google.golang.org/grpc v1.38.0
 	gopkg.in/cheggaaa/pb.v1 v1.0.28
 )

--- a/etcdctl/go.sum
+++ b/etcdctl/go.sum
@ -19,6 +19,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@ -54,8 +55,8 @@ github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmf
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
@ -86,8 +87,10 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
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@ -118,13 +121,15 @@ github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
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@ -168,18 +173,21 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
 github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11 h1:uVUAXhF2To8cbw/3xN3pxj6kk7TYKs98NIrTqPlMWAQ=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
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 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@ -210,6 +218,7 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
@ -226,8 +235,9 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
-github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
+github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
+github.com/prometheus/client_golang v1.11.1 h1:+4eQaD7vAZ6DsfsxB15hbE0odUjGI5ARs9yskGu1v4s=
+github.com/prometheus/client_golang v1.11.1/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -236,15 +246,15 @@ github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6T
 github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
-github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.10.0 h1:RyRA7RzGXQZiW+tGMr7sxa85G1z0yOpM1qq5c8lNawc=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
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+github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
-github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
-github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
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+github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
@ -257,6 +267,7 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5I
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
@ -289,9 +300,10 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0 h1:FPuyGXkE6qPKJ71PyS0sdXuxUvYGXAXxV0XHpx0qjHE=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
+go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
+go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opentelemetry.io/contrib v0.20.0 h1:ubFQUn0VCZ0gPwIoJfBJVpeBlyRMxu8Mm/huKWYd9p0=
@ -320,8 +332,8 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -329,8 +341,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838 h1:71vQrMauZZhcTVK6KdYM+rklehEEwb3E+ZhaE5jrPrE=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@ -344,14 +356,17 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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@ -368,10 +383,13 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@ -384,6 +402,8 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@ -400,17 +420,28 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@ -436,9 +467,11 @@ golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtn
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@ -465,8 +498,9 @@ google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBr
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
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@ -476,8 +510,9 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
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@ -507,10 +542,12 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/etcdutl/etcdutl/backup_command.go
+++ b/etcdutl/etcdutl/backup_command.go
@ -319,10 +319,10 @@ func saveDB(lg *zap.Logger, destDB, srcDB string, idx uint64, term uint64, desir

 	if !v3 {
 		tx := be.BatchTx()
-		tx.Lock()
+		tx.LockOutsideApply()
 		defer tx.Unlock()
 		cindex.UnsafeCreateMetaBucket(tx)
-		cindex.UnsafeUpdateConsistentIndex(tx, idx, term, false)
+		cindex.UnsafeUpdateConsistentIndex(tx, idx, term)
 	} else {
 		// Thanks to translateWAL not moving entries, but just replacing them with
 		// 'empty', there is no need to update the consistency index.
--- a/etcdutl/etcdutl/common.go
+++ b/etcdutl/etcdutl/common.go
@ -15,13 +15,14 @@
 package etcdutl

 import (
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	"go.etcd.io/etcd/pkg/v3/cobrautl"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 )

 func GetLogger() *zap.Logger {
-	config := zap.NewProductionConfig()
+	config := logutil.DefaultZapLoggerConfig
 	config.Encoding = "console"
 	config.EncoderConfig.EncodeTime = zapcore.RFC3339TimeEncoder
 	lg, err := config.Build()
--- a/etcdutl/go.mod
+++ b/etcdutl/go.mod
@ -24,12 +24,12 @@ require (
 	github.com/dustin/go-humanize v1.0.0
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/spf13/cobra v1.1.3
-	go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/raft/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/server/v3 v3.5.0-beta.3
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
+	go.etcd.io/bbolt v1.3.6
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.etcd.io/etcd/client/v3 v3.5.3
+	go.etcd.io/etcd/pkg/v3 v3.5.3
+	go.etcd.io/etcd/raft/v3 v3.5.3
+	go.etcd.io/etcd/server/v3 v3.5.3
+	go.uber.org/zap v1.17.0
 )
--- a/etcdutl/go.sum
+++ b/etcdutl/go.sum
@ -19,6 +19,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@ -53,8 +54,8 @@ github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmf
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
@ -82,8 +83,10 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@ -114,13 +117,15 @@ github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
+github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@ -164,18 +169,21 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
 github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11 h1:uVUAXhF2To8cbw/3xN3pxj6kk7TYKs98NIrTqPlMWAQ=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@ -204,6 +212,7 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
@ -220,8 +229,9 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
-github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
+github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
+github.com/prometheus/client_golang v1.11.1 h1:+4eQaD7vAZ6DsfsxB15hbE0odUjGI5ARs9yskGu1v4s=
+github.com/prometheus/client_golang v1.11.1/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -230,15 +240,15 @@ github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6T
 github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
-github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.10.0 h1:RyRA7RzGXQZiW+tGMr7sxa85G1z0yOpM1qq5c8lNawc=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
+github.com/prometheus/common v0.26.0 h1:iMAkS2TDoNWnKM+Kopnx/8tnEStIfpYA0ur0xQzzhMQ=
+github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
-github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
-github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
+github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
@ -249,6 +259,7 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
@ -279,9 +290,10 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0 h1:FPuyGXkE6qPKJ71PyS0sdXuxUvYGXAXxV0XHpx0qjHE=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
+go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
+go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opentelemetry.io/contrib v0.20.0 h1:ubFQUn0VCZ0gPwIoJfBJVpeBlyRMxu8Mm/huKWYd9p0=
@ -310,8 +322,8 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -319,8 +331,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838 h1:71vQrMauZZhcTVK6KdYM+rklehEEwb3E+ZhaE5jrPrE=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@ -334,14 +346,17 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 h1:VLliZ0d+/avPrXXH+OakdXhpJuEoBZuwh1m2j7U6Iug=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -358,10 +373,13 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb h1:eBmm0M9fYhWpKZLjQUUKka/LtIxf46G4fxeEz5KJr9U=
 golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@ -374,6 +392,8 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@ -390,17 +410,28 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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@ -426,9 +457,11 @@ golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20210106214847-113979e3529a h1:CB3a9Nez8M13wwlr/E2YtwoU+qYHKfC+JrDa45RXXoQ=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2 h1:kRBLX7v7Af8W7Gdbbc908OJcdgtK8bOz9Uaj8/F1ACA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -455,8 +488,9 @@ google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBr
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@ -466,8 +500,9 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
 google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -495,10 +530,12 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/etcdutl/snapshot/v3_snapshot.go
+++ b/etcdutl/snapshot/v3_snapshot.go
@ -69,9 +69,6 @@ type Manager interface {

 // NewV3 returns a new snapshot Manager for v3.x snapshot.
 func NewV3(lg *zap.Logger) Manager {
-	if lg == nil {
-		lg = zap.NewExample()
-	}
 	return &v3Manager{lg: lg}
 }

@ -479,6 +476,6 @@ func (s *v3Manager) updateCIndex(commit uint64, term uint64) error {
 	be := backend.NewDefaultBackend(s.outDbPath())
 	defer be.Close()

-	cindex.UpdateConsistentIndex(be.BatchTx(), commit, term, false)
+	cindex.UpdateConsistentIndex(be.BatchTx(), commit, term)
 	return nil
 }
--- a/go.mod
+++ b/go.mod
@ -19,19 +19,19 @@ require (
 	github.com/bgentry/speakeasy v0.1.0
 	github.com/dustin/go-humanize v1.0.0
 	github.com/spf13/cobra v1.1.3
-	go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/v2 v2.305.0-beta.3
-	go.etcd.io/etcd/client/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/etcdctl/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/etcdutl/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/raft/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/server/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/tests/v3 v3.5.0-beta.3
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
+	go.etcd.io/bbolt v1.3.6
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.etcd.io/etcd/client/v2 v2.305.3
+	go.etcd.io/etcd/client/v3 v3.5.3
+	go.etcd.io/etcd/etcdctl/v3 v3.5.3
+	go.etcd.io/etcd/etcdutl/v3 v3.5.3
+	go.etcd.io/etcd/pkg/v3 v3.5.3
+	go.etcd.io/etcd/raft/v3 v3.5.3
+	go.etcd.io/etcd/server/v3 v3.5.3
+	go.etcd.io/etcd/tests/v3 v3.5.3
+	go.uber.org/zap v1.17.0
 	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
-	google.golang.org/grpc v1.37.0
+	google.golang.org/grpc v1.38.0
 	gopkg.in/cheggaaa/pb.v1 v1.0.28
 )
--- a/go.sum
+++ b/go.sum
@ -20,6 +20,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@ -56,8 +57,8 @@ github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmf
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
@ -88,8 +89,10 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@ -121,13 +124,15 @@ github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
+github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@ -174,18 +179,21 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
 github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11 h1:uVUAXhF2To8cbw/3xN3pxj6kk7TYKs98NIrTqPlMWAQ=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@ -218,6 +226,7 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
@ -234,8 +243,9 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
-github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
+github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
+github.com/prometheus/client_golang v1.11.1 h1:+4eQaD7vAZ6DsfsxB15hbE0odUjGI5ARs9yskGu1v4s=
+github.com/prometheus/client_golang v1.11.1/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -244,15 +254,15 @@ github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6T
 github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
-github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.10.0 h1:RyRA7RzGXQZiW+tGMr7sxa85G1z0yOpM1qq5c8lNawc=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
+github.com/prometheus/common v0.26.0 h1:iMAkS2TDoNWnKM+Kopnx/8tnEStIfpYA0ur0xQzzhMQ=
+github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
-github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
-github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
+github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
@ -263,6 +273,7 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
@ -297,9 +308,10 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0 h1:FPuyGXkE6qPKJ71PyS0sdXuxUvYGXAXxV0XHpx0qjHE=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
+go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
+go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opentelemetry.io/contrib v0.20.0 h1:ubFQUn0VCZ0gPwIoJfBJVpeBlyRMxu8Mm/huKWYd9p0=
@ -333,8 +345,8 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -342,8 +354,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838 h1:71vQrMauZZhcTVK6KdYM+rklehEEwb3E+ZhaE5jrPrE=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@ -357,14 +369,17 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 h1:VLliZ0d+/avPrXXH+OakdXhpJuEoBZuwh1m2j7U6Iug=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -381,10 +396,13 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb h1:eBmm0M9fYhWpKZLjQUUKka/LtIxf46G4fxeEz5KJr9U=
 golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@ -396,8 +414,10 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@ -414,17 +434,28 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 h1:F5Gozwx4I1xtr/sr/8CFbb57iKi3297KFs0QDbGN60A=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiTs/Igowgfkj25AcZrtiE=
@ -450,9 +481,11 @@ golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20210106214847-113979e3529a h1:CB3a9Nez8M13wwlr/E2YtwoU+qYHKfC+JrDa45RXXoQ=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2 h1:kRBLX7v7Af8W7Gdbbc908OJcdgtK8bOz9Uaj8/F1ACA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -479,8 +512,9 @@ google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBr
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@ -490,8 +524,9 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
 google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -523,10 +558,12 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/pkg/expect/expect.go
+++ b/pkg/expect/expect.go
@ -25,6 +25,7 @@ import (
 	"strings"
 	"sync"
 	"syscall"
+	"time"

 	"github.com/creack/pty"
 )
@ -36,7 +37,6 @@ type ExpectProcess struct {
 	fpty *os.File
 	wg   sync.WaitGroup

-	cond  *sync.Cond // for broadcasting updates are available
 	mu    sync.Mutex // protects lines and err
 	lines []string
 	count int // increment whenever new line gets added
@ -60,7 +60,6 @@ func NewExpectWithEnv(name string, args []string, env []string) (ep *ExpectProce
 		cmd:        cmd,
 		StopSignal: syscall.SIGKILL,
 	}
-	ep.cond = sync.NewCond(&ep.mu)
 	ep.cmd.Stderr = ep.cmd.Stdout
 	ep.cmd.Stdin = nil

@ -77,52 +76,56 @@ func (ep *ExpectProcess) read() {
 	defer ep.wg.Done()
 	printDebugLines := os.Getenv("EXPECT_DEBUG") != ""
 	r := bufio.NewReader(ep.fpty)
-	for ep.err == nil {
-		l, rerr := r.ReadString('\n')
+	for {
+		l, err := r.ReadString('\n')
 		ep.mu.Lock()
-		ep.err = rerr
 		if l != "" {
 			if printDebugLines {
 				fmt.Printf("%s-%d: %s", ep.cmd.Path, ep.cmd.Process.Pid, l)
 			}
 			ep.lines = append(ep.lines, l)
 			ep.count++
-			if len(ep.lines) == 1 {
-				ep.cond.Signal()
-			}
+		}
+		if err != nil {
+			ep.err = err
+			ep.mu.Unlock()
+			break
 		}
 		ep.mu.Unlock()
 	}
-	ep.cond.Signal()
 }

 // ExpectFunc returns the first line satisfying the function f.
 func (ep *ExpectProcess) ExpectFunc(f func(string) bool) (string, error) {
-	lastLinesBuffer := make([]string, 0)
+	i := 0

-	ep.mu.Lock()
 	for {
-		for len(ep.lines) == 0 && ep.err == nil {
-			ep.cond.Wait()
+		ep.mu.Lock()
+		for i < len(ep.lines) {
+			line := ep.lines[i]
+			i++
+			if f(line) {
+				ep.mu.Unlock()
+				return line, nil
+			}
 		}
-		if len(ep.lines) == 0 {
+		if ep.err != nil {
+			ep.mu.Unlock()
 			break
 		}
-		l := ep.lines[0]
-		ep.lines = ep.lines[1:]
-		lastLinesBuffer = append(lastLinesBuffer, l)
-		if l := len(lastLinesBuffer); l > DEBUG_LINES_TAIL {
-			lastLinesBuffer = lastLinesBuffer[l-DEBUG_LINES_TAIL : l-1]
-		}
-		if f(l) {
-			ep.mu.Unlock()
-			return l, nil
-		}
+		ep.mu.Unlock()
+		time.Sleep(time.Millisecond * 100)
 	}
+	ep.mu.Lock()
+	lastLinesIndex := len(ep.lines) - DEBUG_LINES_TAIL
+	if lastLinesIndex < 0 {
+		lastLinesIndex = 0
+	}
+	lastLines := strings.Join(ep.lines[lastLinesIndex:], "")
 	ep.mu.Unlock()
 	return "", fmt.Errorf("match not found."+
 		" Set EXPECT_DEBUG for more info Err: %v, last lines:\n%s",
-		ep.err, strings.Join(lastLinesBuffer, ""))
+		ep.err, lastLines)
 }

 // Expect returns the first line containing the given string.
@ -189,3 +192,9 @@ func (ep *ExpectProcess) ProcessError() error {
 	}
 	return ep.err
 }
+
+func (ep *ExpectProcess) Lines() []string {
+	ep.mu.Lock()
+	defer ep.mu.Unlock()
+	return ep.lines
+}
--- a/pkg/go.mod
+++ b/pkg/go.mod
@ -9,9 +9,9 @@ require (
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.7.0
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
-	google.golang.org/grpc v1.37.0
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.uber.org/zap v1.17.0
+	google.golang.org/grpc v1.38.0
 )

 replace (
--- a/pkg/go.sum
+++ b/pkg/go.sum
@ -31,7 +31,7 @@ github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkE
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.11 h1:07n33Z8lZxZ2qwegKbObQohDhXDQxiMMz1NOUGYlesw=
@ -192,7 +192,6 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@ -209,8 +208,8 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -325,8 +324,8 @@ google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ij
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -350,10 +349,12 @@ gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bl
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/pkg/grpc_testing/recorder.go
+++ b/pkg/grpc_testing/recorder.go
@ -0,0 +1,69 @@
+// Copyright 2021 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package grpc_testing
+
+import (
+	"context"
+	"sync"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+)
+
+type GrpcRecorder struct {
+	mux      sync.RWMutex
+	requests []RequestInfo
+}
+
+type RequestInfo struct {
+	FullMethod string
+	Authority  string
+}
+
+func (ri *GrpcRecorder) UnaryInterceptor() grpc.UnaryServerInterceptor {
+	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+		ri.record(toRequestInfo(ctx, info))
+		resp, err := handler(ctx, req)
+		return resp, err
+	}
+}
+
+func (ri *GrpcRecorder) RecordedRequests() []RequestInfo {
+	ri.mux.RLock()
+	defer ri.mux.RUnlock()
+	reqs := make([]RequestInfo, len(ri.requests))
+	copy(reqs, ri.requests)
+	return reqs
+}
+
+func toRequestInfo(ctx context.Context, info *grpc.UnaryServerInfo) RequestInfo {
+	req := RequestInfo{
+		FullMethod: info.FullMethod,
+	}
+	md, ok := metadata.FromIncomingContext(ctx)
+	if ok {
+		as := md.Get(":authority")
+		if len(as) != 0 {
+			req.Authority = as[0]
+		}
+	}
+	return req
+}
+
+func (ri *GrpcRecorder) record(r RequestInfo) {
+	ri.mux.Lock()
+	defer ri.mux.Unlock()
+	ri.requests = append(ri.requests, r)
+}
--- a/pkg/netutil/netutil.go
+++ b/pkg/netutil/netutil.go
@ -190,12 +190,6 @@ func URLStringsEqual(ctx context.Context, lg *zap.Logger, a []string, b []string
 		}
 		urlsB = append(urlsB, *u)
 	}
-	if lg == nil {
-		lg, _ = zap.NewProduction()
-		if lg == nil {
-			lg = zap.NewExample()
-		}
-	}
 	return urlsEqual(ctx, lg, urlsA, urlsB)
 }

--- a/pkg/proxy/server.go
+++ b/pkg/proxy/server.go
@ -37,17 +37,8 @@ var (
 	defaultDialTimeout   = 3 * time.Second
 	defaultBufferSize    = 48 * 1024
 	defaultRetryInterval = 10 * time.Millisecond
-	defaultLogger        *zap.Logger
 )

-func init() {
-	var err error
-	defaultLogger, err = zap.NewProduction()
-	if err != nil {
-		panic(err)
-	}
-}
-
 // Server defines proxy server layer that simulates common network faults:
 // latency spikes and packet drop or corruption. The proxy overhead is very
 // small overhead (<500μs per request). Please run tests to compute actual
@ -240,9 +231,6 @@ func NewServer(cfg ServerConfig) Server {
 	if s.retryInterval == 0 {
 		s.retryInterval = defaultRetryInterval
 	}
-	if s.lg == nil {
-		s.lg = defaultLogger
-	}

 	close(s.pauseAcceptc)
 	close(s.pauseTxc)
--- a/raft/go.mod
+++ b/raft/go.mod
@ -8,7 +8,7 @@ require (
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/protobuf v1.5.2
 	github.com/pkg/errors v0.9.1 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
 )

 // Bad imports are sometimes causing attempts to pull that code.
--- a/raft/go.sum
+++ b/raft/go.sum
@ -1,52 +1,26 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/certifi/gocertifi v0.0.0-20191021191039-0944d244cd40/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
 github.com/certifi/gocertifi v0.0.0-20200922220541-2c3bb06c6054 h1:uH66TXeswKn5PW5zdZ39xEwfS9an067BirqA+P4QaLI=
 github.com/certifi/gocertifi v0.0.0-20200922220541-2c3bb06c6054/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5 h1:xD/lrqdvwsc+O2bjSSi3YqY73Ke3LAiSCx49aCesA0E=
 github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5/go.mod h1:h6jFvWxBdQXxjopDMZyH2UVceIRfR84bdzbkoKrsWNo=
 github.com/cockroachdb/errors v1.2.4 h1:Lap807SXTH5tri2TivECb/4abUkMZC9zRoLarvcKDqs=
 github.com/cockroachdb/errors v1.2.4/go.mod h1:rQD95gz6FARkaKkQXUksEje/d9a6wBJoCr5oaCLELYA=
 github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f h1:o/kfcElHqOiXqcou5a3rIlMc7oJbMQkeLk0VQJ7zgqY=
 github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
-github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/getsentry/raven-go v0.2.0 h1:no+xWJRb5ZI7eE8TWgIq1jLulQiIoLG0IfYxv5JYMGs=
 github.com/getsentry/raven-go v0.2.0/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
-github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
-github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
-github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
-github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
-github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
-github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
-github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
@ -60,40 +34,26 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
-golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
-golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
-golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -102,10 +62,6 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
-golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
@ -114,29 +70,10 @@ golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
-google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
-google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
-google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
-google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
-google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/server/auth/range_perm_cache.go
+++ b/server/auth/range_perm_cache.go
@ -22,7 +22,7 @@ import (
 	"go.uber.org/zap"
 )

-func getMergedPerms(lg *zap.Logger, tx backend.BatchTx, userName string) *unifiedRangePermissions {
+func getMergedPerms(lg *zap.Logger, tx backend.ReadTx, userName string) *unifiedRangePermissions {
 	user := getUser(lg, tx, userName)
 	if user == nil {
 		return nil
@ -105,7 +105,7 @@ func checkKeyPoint(lg *zap.Logger, cachedPerms *unifiedRangePermissions, key []b
 	return false
 }

-func (as *authStore) isRangeOpPermitted(tx backend.BatchTx, userName string, key, rangeEnd []byte, permtyp authpb.Permission_Type) bool {
+func (as *authStore) isRangeOpPermitted(tx backend.ReadTx, userName string, key, rangeEnd []byte, permtyp authpb.Permission_Type) bool {
 	// assumption: tx is Lock()ed
 	_, ok := as.rangePermCache[userName]
 	if !ok {
--- a/server/auth/store.go
+++ b/server/auth/store.go
@ -30,6 +30,7 @@ import (
 	pb "go.etcd.io/etcd/api/v3/etcdserverpb"
 	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
 	"go.etcd.io/etcd/server/v3/mvcc/backend"
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"

 	"go.uber.org/zap"
 	"golang.org/x/crypto/bcrypt"
@ -45,10 +46,6 @@ var (

 	revisionKey = []byte("authRevision")

-	authBucketName      = []byte("auth")
-	authUsersBucketName = []byte("authUsers")
-	authRolesBucketName = []byte("authRoles")
-
 	ErrRootUserNotExist     = errors.New("auth: root user does not exist")
 	ErrRootRoleNotExist     = errors.New("auth: root user does not have root role")
 	ErrUserAlreadyExist     = errors.New("auth: user already exists")
@ -57,6 +54,7 @@ var (
 	ErrRoleAlreadyExist     = errors.New("auth: role already exists")
 	ErrRoleNotFound         = errors.New("auth: role not found")
 	ErrRoleEmpty            = errors.New("auth: role name is empty")
+	ErrPermissionNotGiven   = errors.New("auth: permission not given")
 	ErrAuthFailed           = errors.New("auth: authentication failed, invalid user ID or password")
 	ErrNoPasswordUser       = errors.New("auth: authentication failed, password was given for no password user")
 	ErrPermissionDenied     = errors.New("auth: permission denied")
@ -225,7 +223,7 @@ func (as *authStore) AuthEnable() error {
 	}
 	b := as.be
 	tx := b.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer func() {
 		tx.Unlock()
 		b.ForceCommit()
@ -240,7 +238,7 @@ func (as *authStore) AuthEnable() error {
 		return ErrRootRoleNotExist
 	}

-	tx.UnsafePut(authBucketName, enableFlagKey, authEnabled)
+	tx.UnsafePut(buckets.Auth, enableFlagKey, authEnabled)

 	as.enabled = true
 	as.tokenProvider.enable()
@ -261,8 +259,8 @@ func (as *authStore) AuthDisable() {
 	}
 	b := as.be
 	tx := b.BatchTx()
-	tx.Lock()
-	tx.UnsafePut(authBucketName, enableFlagKey, authDisabled)
+	tx.LockInsideApply()
+	tx.UnsafePut(buckets.Auth, enableFlagKey, authDisabled)
 	as.commitRevision(tx)
 	tx.Unlock()
 	b.ForceCommit()
@ -289,7 +287,7 @@ func (as *authStore) Authenticate(ctx context.Context, username, password string
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, username)
@ -326,7 +324,7 @@ func (as *authStore) CheckPassword(username, password string) (uint64, error) {
 	// CompareHashAndPassword is very expensive, so we use closures
 	// to avoid putting it in the critical section of the tx lock.
 	revision, err := func() (uint64, error) {
-		tx := as.be.BatchTx()
+		tx := as.be.ReadTx()
 		tx.Lock()
 		defer tx.Unlock()

@ -355,9 +353,9 @@ func (as *authStore) CheckPassword(username, password string) (uint64, error) {
 func (as *authStore) Recover(be backend.Backend) {
 	enabled := false
 	as.be = be
-	tx := be.BatchTx()
+	tx := be.ReadTx()
 	tx.Lock()
-	_, vs := tx.UnsafeRange(authBucketName, enableFlagKey, nil, 0)
+	_, vs := tx.UnsafeRange(buckets.Auth, enableFlagKey, nil, 0)
 	if len(vs) == 1 {
 		if bytes.Equal(vs[0], authEnabled) {
 			enabled = true
@ -387,7 +385,7 @@ func (as *authStore) UserAdd(r *pb.AuthUserAddRequest) (*pb.AuthUserAddResponse,
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, r.Name)
@ -433,7 +431,7 @@ func (as *authStore) UserDelete(r *pb.AuthUserDeleteRequest) (*pb.AuthUserDelete
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, r.Name)
@ -458,7 +456,7 @@ func (as *authStore) UserDelete(r *pb.AuthUserDeleteRequest) (*pb.AuthUserDelete

 func (as *authStore) UserChangePassword(r *pb.AuthUserChangePasswordRequest) (*pb.AuthUserChangePasswordResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, r.Name)
@ -500,7 +498,7 @@ func (as *authStore) UserChangePassword(r *pb.AuthUserChangePasswordRequest) (*p

 func (as *authStore) UserGrantRole(r *pb.AuthUserGrantRoleRequest) (*pb.AuthUserGrantRoleResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, r.User)
@ -546,7 +544,7 @@ func (as *authStore) UserGrantRole(r *pb.AuthUserGrantRoleRequest) (*pb.AuthUser

 func (as *authStore) UserGet(r *pb.AuthUserGetRequest) (*pb.AuthUserGetResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	user := getUser(as.lg, tx, r.Name)
 	tx.Unlock()

@ -561,7 +559,7 @@ func (as *authStore) UserGet(r *pb.AuthUserGetRequest) (*pb.AuthUserGetResponse,

 func (as *authStore) UserList(r *pb.AuthUserListRequest) (*pb.AuthUserListResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	users := getAllUsers(as.lg, tx)
 	tx.Unlock()

@ -583,7 +581,7 @@ func (as *authStore) UserRevokeRole(r *pb.AuthUserRevokeRoleRequest) (*pb.AuthUs
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	user := getUser(as.lg, tx, r.Name)
@ -625,7 +623,7 @@ func (as *authStore) UserRevokeRole(r *pb.AuthUserRevokeRoleRequest) (*pb.AuthUs

 func (as *authStore) RoleGet(r *pb.AuthRoleGetRequest) (*pb.AuthRoleGetResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	var resp pb.AuthRoleGetResponse
@ -640,7 +638,7 @@ func (as *authStore) RoleGet(r *pb.AuthRoleGetRequest) (*pb.AuthRoleGetResponse,

 func (as *authStore) RoleList(r *pb.AuthRoleListRequest) (*pb.AuthRoleListResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	roles := getAllRoles(as.lg, tx)
 	tx.Unlock()

@ -653,7 +651,7 @@ func (as *authStore) RoleList(r *pb.AuthRoleListRequest) (*pb.AuthRoleListRespon

 func (as *authStore) RoleRevokePermission(r *pb.AuthRoleRevokePermissionRequest) (*pb.AuthRoleRevokePermissionResponse, error) {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	role := getRole(as.lg, tx, r.Role)
@ -699,7 +697,7 @@ func (as *authStore) RoleDelete(r *pb.AuthRoleDeleteRequest) (*pb.AuthRoleDelete
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	role := getRole(as.lg, tx, r.Role)
@ -744,7 +742,7 @@ func (as *authStore) RoleAdd(r *pb.AuthRoleAddRequest) (*pb.AuthRoleAddResponse,
 	}

 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	role := getRole(as.lg, tx, r.Name)
@ -783,8 +781,12 @@ func (perms permSlice) Swap(i, j int) {
 }

 func (as *authStore) RoleGrantPermission(r *pb.AuthRoleGrantPermissionRequest) (*pb.AuthRoleGrantPermissionResponse, error) {
+	if r.Perm == nil {
+		return nil, ErrPermissionNotGiven
+	}
+
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()

 	role := getRole(as.lg, tx, r.Name)
@ -847,7 +849,7 @@ func (as *authStore) isOpPermitted(userName string, revision uint64, key, rangeE
 		return ErrAuthOldRevision
 	}

-	tx := as.be.BatchTx()
+	tx := as.be.ReadTx()
 	tx.Lock()
 	defer tx.Unlock()

@ -889,7 +891,7 @@ func (as *authStore) IsAdminPermitted(authInfo *AuthInfo) error {
 		return ErrUserEmpty
 	}

-	tx := as.be.BatchTx()
+	tx := as.be.ReadTx()
 	tx.Lock()
 	u := getUser(as.lg, tx, authInfo.Username)
 	tx.Unlock()
@ -905,8 +907,8 @@ func (as *authStore) IsAdminPermitted(authInfo *AuthInfo) error {
 	return nil
 }

-func getUser(lg *zap.Logger, tx backend.BatchTx, username string) *authpb.User {
-	_, vs := tx.UnsafeRange(authUsersBucketName, []byte(username), nil, 0)
+func getUser(lg *zap.Logger, tx backend.ReadTx, username string) *authpb.User {
+	_, vs := tx.UnsafeRange(buckets.AuthUsers, []byte(username), nil, 0)
 	if len(vs) == 0 {
 		return nil
 	}
@ -923,8 +925,8 @@ func getUser(lg *zap.Logger, tx backend.BatchTx, username string) *authpb.User {
 	return user
 }

-func getAllUsers(lg *zap.Logger, tx backend.BatchTx) []*authpb.User {
-	_, vs := tx.UnsafeRange(authUsersBucketName, []byte{0}, []byte{0xff}, -1)
+func getAllUsers(lg *zap.Logger, tx backend.ReadTx) []*authpb.User {
+	_, vs := tx.UnsafeRange(buckets.AuthUsers, []byte{0}, []byte{0xff}, -1)
 	if len(vs) == 0 {
 		return nil
 	}
@ -946,15 +948,15 @@ func putUser(lg *zap.Logger, tx backend.BatchTx, user *authpb.User) {
 	if err != nil {
 		lg.Panic("failed to unmarshal 'authpb.User'", zap.Error(err))
 	}
-	tx.UnsafePut(authUsersBucketName, user.Name, b)
+	tx.UnsafePut(buckets.AuthUsers, user.Name, b)
 }

 func delUser(tx backend.BatchTx, username string) {
-	tx.UnsafeDelete(authUsersBucketName, []byte(username))
+	tx.UnsafeDelete(buckets.AuthUsers, []byte(username))
 }

-func getRole(lg *zap.Logger, tx backend.BatchTx, rolename string) *authpb.Role {
-	_, vs := tx.UnsafeRange(authRolesBucketName, []byte(rolename), nil, 0)
+func getRole(lg *zap.Logger, tx backend.ReadTx, rolename string) *authpb.Role {
+	_, vs := tx.UnsafeRange(buckets.AuthRoles, []byte(rolename), nil, 0)
 	if len(vs) == 0 {
 		return nil
 	}
@ -967,8 +969,8 @@ func getRole(lg *zap.Logger, tx backend.BatchTx, rolename string) *authpb.Role {
 	return role
 }

-func getAllRoles(lg *zap.Logger, tx backend.BatchTx) []*authpb.Role {
-	_, vs := tx.UnsafeRange(authRolesBucketName, []byte{0}, []byte{0xff}, -1)
+func getAllRoles(lg *zap.Logger, tx backend.ReadTx) []*authpb.Role {
+	_, vs := tx.UnsafeRange(buckets.AuthRoles, []byte{0}, []byte{0xff}, -1)
 	if len(vs) == 0 {
 		return nil
 	}
@ -995,11 +997,11 @@ func putRole(lg *zap.Logger, tx backend.BatchTx, role *authpb.Role) {
 		)
 	}

-	tx.UnsafePut(authRolesBucketName, role.Name, b)
+	tx.UnsafePut(buckets.AuthRoles, role.Name, b)
 }

 func delRole(tx backend.BatchTx, rolename string) {
-	tx.UnsafeDelete(authRolesBucketName, []byte(rolename))
+	tx.UnsafeDelete(buckets.AuthRoles, []byte(rolename))
 }

 func (as *authStore) IsAuthEnabled() bool {
@ -1026,14 +1028,14 @@ func NewAuthStore(lg *zap.Logger, be backend.Backend, tp TokenProvider, bcryptCo
 	}

 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockOutsideApply()

-	tx.UnsafeCreateBucket(authBucketName)
-	tx.UnsafeCreateBucket(authUsersBucketName)
-	tx.UnsafeCreateBucket(authRolesBucketName)
+	tx.UnsafeCreateBucket(buckets.Auth)
+	tx.UnsafeCreateBucket(buckets.AuthUsers)
+	tx.UnsafeCreateBucket(buckets.AuthRoles)

 	enabled := false
-	_, vs := tx.UnsafeRange(authBucketName, enableFlagKey, nil, 0)
+	_, vs := tx.UnsafeRange(buckets.Auth, enableFlagKey, nil, 0)
 	if len(vs) == 1 {
 		if bytes.Equal(vs[0], authEnabled) {
 			enabled = true
@ -1076,11 +1078,11 @@ func (as *authStore) commitRevision(tx backend.BatchTx) {
 	atomic.AddUint64(&as.revision, 1)
 	revBytes := make([]byte, revBytesLen)
 	binary.BigEndian.PutUint64(revBytes, as.Revision())
-	tx.UnsafePut(authBucketName, revisionKey, revBytes)
+	tx.UnsafePut(buckets.Auth, revisionKey, revBytes)
 }

-func getRevision(tx backend.BatchTx) uint64 {
-	_, vs := tx.UnsafeRange(authBucketName, revisionKey, nil, 0)
+func getRevision(tx backend.ReadTx) uint64 {
+	_, vs := tx.UnsafeRange(buckets.Auth, revisionKey, nil, 0)
 	if len(vs) != 1 {
 		// this can happen in the initialization phase
 		return 0
@ -1279,7 +1281,7 @@ func (as *authStore) WithRoot(ctx context.Context) context.Context {

 func (as *authStore) HasRole(user, role string) bool {
 	tx := as.be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	u := getUser(as.lg, tx, user)
 	tx.Unlock()

--- a/server/auth/store_test.go
+++ b/server/auth/store_test.go
@ -448,6 +448,24 @@ func TestRoleGrantPermission(t *testing.T) {
 	if !reflect.DeepEqual(perm, r.Perm[0]) {
 		t.Errorf("expected %v, got %v", perm, r.Perm[0])
 	}
+
+	// trying to grant nil permissions returns an error (and doesn't change the actual permissions!)
+	_, err = as.RoleGrantPermission(&pb.AuthRoleGrantPermissionRequest{
+		Name: "role-test-1",
+	})
+
+	if err != ErrPermissionNotGiven {
+		t.Error(err)
+	}
+
+	r, err = as.RoleGet(&pb.AuthRoleGetRequest{Role: "role-test-1"})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !reflect.DeepEqual(perm, r.Perm[0]) {
+		t.Errorf("expected %v, got %v", perm, r.Perm[0])
+	}
 }

 func TestRoleRevokePermission(t *testing.T) {
--- a/server/config/config.go
+++ b/server/config/config.go
@ -147,10 +147,12 @@ type ServerConfig struct {

 	ForceNewCluster bool

-	// EnableLeaseCheckpoint enables primary lessor to persist lease remainingTTL to prevent indefinite auto-renewal of long lived leases.
+	// EnableLeaseCheckpoint enables leader to send regular checkpoints to other members to prevent reset of remaining TTL on leader change.
 	EnableLeaseCheckpoint bool
 	// LeaseCheckpointInterval time.Duration is the wait duration between lease checkpoints.
 	LeaseCheckpointInterval time.Duration
+	// LeaseCheckpointPersist enables persisting remainingTTL to prevent indefinite auto-renewal of long lived leases. Always enabled in v3.6. Should be used to ensure smooth upgrade from v3.5 clusters with this feature enabled.
+	LeaseCheckpointPersist bool

 	EnableGRPCGateway bool

--- a/server/embed/config.go
+++ b/server/embed/config.go
@ -207,7 +207,7 @@ type Config struct {
 	// SelfSignedCertValidity specifies the validity period of the client and peer certificates
 	// that are automatically generated by etcd when you specify ClientAutoTLS and PeerAutoTLS,
 	// the unit is year, and the default is 1
-	SelfSignedCertValidity uint
+	SelfSignedCertValidity uint `json:"self-signed-cert-validity"`

 	// CipherSuites is a list of supported TLS cipher suites between
 	// client/server and peers. If empty, Go auto-populates the list.
@ -314,10 +314,15 @@ type Config struct {
 	// Deprecated in v3.5.
 	// TODO: Delete in v3.6 (https://github.com/etcd-io/etcd/issues/12913)
 	ExperimentalEnableV2V3 string `json:"experimental-enable-v2v3"`
-	// ExperimentalEnableLeaseCheckpoint enables primary lessor to persist lease remainingTTL to prevent indefinite auto-renewal of long lived leases.
-	ExperimentalEnableLeaseCheckpoint       bool          `json:"experimental-enable-lease-checkpoint"`
-	ExperimentalCompactionBatchLimit        int           `json:"experimental-compaction-batch-limit"`
-	ExperimentalWatchProgressNotifyInterval time.Duration `json:"experimental-watch-progress-notify-interval"`
+	// ExperimentalEnableLeaseCheckpoint enables leader to send regular checkpoints to other members to prevent reset of remaining TTL on leader change.
+	ExperimentalEnableLeaseCheckpoint bool `json:"experimental-enable-lease-checkpoint"`
+	// ExperimentalEnableLeaseCheckpointPersist enables persisting remainingTTL to prevent indefinite auto-renewal of long lived leases. Always enabled in v3.6. Should be used to ensure smooth upgrade from v3.5 clusters with this feature enabled.
+	// Requires experimental-enable-lease-checkpoint to be enabled.
+	// Deprecated in v3.6.
+	// TODO: Delete in v3.7
+	ExperimentalEnableLeaseCheckpointPersist bool          `json:"experimental-enable-lease-checkpoint-persist"`
+	ExperimentalCompactionBatchLimit         int           `json:"experimental-compaction-batch-limit"`
+	ExperimentalWatchProgressNotifyInterval  time.Duration `json:"experimental-watch-progress-notify-interval"`
 	// ExperimentalWarningApplyDuration is the time duration after which a warning is generated if applying request
 	// takes more time than this value.
 	ExperimentalWarningApplyDuration time.Duration `json:"experimental-warning-apply-duration"`
@ -591,7 +596,9 @@ func (cfg *configYAML) configFromFile(path string) error {
 	copySecurityDetails(&cfg.PeerTLSInfo, &cfg.PeerSecurityJSON)
 	cfg.ClientAutoTLS = cfg.ClientSecurityJSON.AutoTLS
 	cfg.PeerAutoTLS = cfg.PeerSecurityJSON.AutoTLS
-
+	if cfg.SelfSignedCertValidity == 0 {
+		cfg.SelfSignedCertValidity = 1
+	}
 	return cfg.Validate()
 }

@ -676,6 +683,14 @@ func (cfg *Config) Validate() error {
 		return fmt.Errorf("unknown auto-compaction-mode %q", cfg.AutoCompactionMode)
 	}

+	if !cfg.ExperimentalEnableLeaseCheckpointPersist && cfg.ExperimentalEnableLeaseCheckpoint {
+		cfg.logger.Warn("Detected that checkpointing is enabled without persistence. Consider enabling experimental-enable-lease-checkpoint-persist")
+	}
+
+	if cfg.ExperimentalEnableLeaseCheckpointPersist && !cfg.ExperimentalEnableLeaseCheckpoint {
+		return fmt.Errorf("setting experimental-enable-lease-checkpoint-persist requires experimental-enable-lease-checkpoint")
+	}
+
 	return nil
 }

--- a/server/embed/config_logging.go
+++ b/server/embed/config_logging.go
@ -87,7 +87,11 @@ func (cfg *Config) setupLogging() error {
 				var path string
 				if cfg.EnableLogRotation {
 					// append rotate scheme to logs managed by lumberjack log rotation
-					path = fmt.Sprintf("rotate:%s", v)
+					if v[0:1] == "/" {
+						path = fmt.Sprintf("rotate:/%%2F%s", v[1:])
+					} else {
+						path = fmt.Sprintf("rotate:/%s", v)
+					}
 				} else {
 					path = v
 				}
@ -254,7 +258,7 @@ func setupLogRotation(logOutputs []string, logRotateConfigJSON string) error {
 		}
 	}
 	zap.RegisterSink("rotate", func(u *url.URL) (zap.Sink, error) {
-		logRotationConfig.Filename = u.Path
+		logRotationConfig.Filename = u.Path[1:]
 		return &logRotationConfig, nil
 	})
 	return nil
--- a/server/embed/config_test.go
+++ b/server/embed/config_test.go
@ -291,6 +291,56 @@ func TestPeerURLsMapAndTokenFromSRV(t *testing.T) {
 	}
 }

+func TestLeaseCheckpointValidate(t *testing.T) {
+	tcs := []struct {
+		name        string
+		configFunc  func() Config
+		expectError bool
+	}{
+		{
+			name: "Default config should pass",
+			configFunc: func() Config {
+				return *NewConfig()
+			},
+		},
+		{
+			name: "Enabling checkpoint leases should pass",
+			configFunc: func() Config {
+				cfg := *NewConfig()
+				cfg.ExperimentalEnableLeaseCheckpoint = true
+				return cfg
+			},
+		},
+		{
+			name: "Enabling checkpoint leases and persist should pass",
+			configFunc: func() Config {
+				cfg := *NewConfig()
+				cfg.ExperimentalEnableLeaseCheckpoint = true
+				cfg.ExperimentalEnableLeaseCheckpointPersist = true
+				return cfg
+			},
+		},
+		{
+			name: "Enabling checkpoint leases persist without checkpointing itself should fail",
+			configFunc: func() Config {
+				cfg := *NewConfig()
+				cfg.ExperimentalEnableLeaseCheckpointPersist = true
+				return cfg
+			},
+			expectError: true,
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			cfg := tc.configFunc()
+			err := cfg.Validate()
+			if (err != nil) != tc.expectError {
+				t.Errorf("config.Validate() = %q, expected error: %v", err, tc.expectError)
+			}
+		})
+	}
+}
+
 func TestLogRotation(t *testing.T) {
 	tests := []struct {
 		name              string
@ -304,6 +354,11 @@ func TestLogRotation(t *testing.T) {
 			logOutputs:        []string{"stderr", "/tmp/path"},
 			logRotationConfig: `{"maxsize": 1}`,
 		},
+		{
+			name:              "log output relative path",
+			logOutputs:        []string{"stderr", "tmp/path"},
+			logRotationConfig: `{"maxsize": 1}`,
+		},
 		{
 			name:              "no file targets",
 			logOutputs:        []string{"stderr"},
@ -361,6 +416,9 @@ func TestLogRotation(t *testing.T) {
 			if err == nil && tt.wantErr {
 				t.Errorf("test %q, expected error, got nil", tt.name)
 			}
+			if err == nil {
+				cfg.GetLogger().Info("test log")
+			}
 		})
 	}
 }
--- a/server/embed/etcd.go
+++ b/server/embed/etcd.go
@ -216,6 +216,7 @@ func StartEtcd(inCfg *Config) (e *Etcd, err error) {
 		ExperimentalEnableDistributedTracing:     cfg.ExperimentalEnableDistributedTracing,
 		UnsafeNoFsync:                            cfg.UnsafeNoFsync,
 		EnableLeaseCheckpoint:                    cfg.ExperimentalEnableLeaseCheckpoint,
+		LeaseCheckpointPersist:                   cfg.ExperimentalEnableLeaseCheckpointPersist,
 		CompactionBatchLimit:                     cfg.ExperimentalCompactionBatchLimit,
 		WatchProgressNotifyInterval:              cfg.ExperimentalWatchProgressNotifyInterval,
 		DowngradeCheckTime:                       cfg.ExperimentalDowngradeCheckTime,
@ -539,7 +540,7 @@ func (e *Etcd) servePeers() (err error) {

 	for _, p := range e.Peers {
 		u := p.Listener.Addr().String()
-		gs := v3rpc.Server(e.Server, peerTLScfg)
+		gs := v3rpc.Server(e.Server, peerTLScfg, nil)
 		m := cmux.New(p.Listener)
 		go gs.Serve(m.Match(cmux.HTTP2()))
 		srv := &http.Server{
--- a/server/embed/serve.go
+++ b/server/embed/serve.go
@ -19,6 +19,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	defaultLog "log"
+	"math"
 	"net"
 	"net/http"
 	"strings"
@ -109,7 +110,7 @@ func (sctx *serveCtx) serve(
 	}()

 	if sctx.insecure {
-		gs = v3rpc.Server(s, nil, gopts...)
+		gs = v3rpc.Server(s, nil, nil, gopts...)
 		v3electionpb.RegisterElectionServer(gs, servElection)
 		v3lockpb.RegisterLockServer(gs, servLock)
 		if sctx.serviceRegister != nil {
@ -147,7 +148,7 @@ func (sctx *serveCtx) serve(
 		if tlsErr != nil {
 			return tlsErr
 		}
-		gs = v3rpc.Server(s, tlscfg, gopts...)
+		gs = v3rpc.Server(s, tlscfg, nil, gopts...)
 		v3electionpb.RegisterElectionServer(gs, servElection)
 		v3lockpb.RegisterLockServer(gs, servLock)
 		if sctx.serviceRegister != nil {
@ -222,6 +223,10 @@ func (sctx *serveCtx) registerGateway(opts []grpc.DialOption) (*gw.ServeMux, err
 		addr = fmt.Sprintf("%s://%s", network, addr)
 	}

+	opts = append(opts, grpc.WithDefaultCallOptions([]grpc.CallOption{
+		grpc.MaxCallRecvMsgSize(math.MaxInt32),
+	}...))
+
 	conn, err := grpc.DialContext(ctx, addr, opts...)
 	if err != nil {
 		return nil, err
--- a/server/etcdmain/config.go
+++ b/server/etcdmain/config.go
@ -280,7 +280,9 @@ func newConfig() *config {
 	fs.BoolVar(&cfg.ec.ExperimentalInitialCorruptCheck, "experimental-initial-corrupt-check", cfg.ec.ExperimentalInitialCorruptCheck, "Enable to check data corruption before serving any client/peer traffic.")
 	fs.DurationVar(&cfg.ec.ExperimentalCorruptCheckTime, "experimental-corrupt-check-time", cfg.ec.ExperimentalCorruptCheckTime, "Duration of time between cluster corruption check passes.")

-	fs.BoolVar(&cfg.ec.ExperimentalEnableLeaseCheckpoint, "experimental-enable-lease-checkpoint", false, "Enable to persist lease remaining TTL to prevent indefinite auto-renewal of long lived leases.")
+	fs.BoolVar(&cfg.ec.ExperimentalEnableLeaseCheckpoint, "experimental-enable-lease-checkpoint", false, "Enable leader to send regular checkpoints to other members to prevent reset of remaining TTL on leader change.")
+	// TODO: delete in v3.7
+	fs.BoolVar(&cfg.ec.ExperimentalEnableLeaseCheckpointPersist, "experimental-enable-lease-checkpoint-persist", false, "Enable persisting remainingTTL to prevent indefinite auto-renewal of long lived leases. Always enabled in v3.6. Should be used to ensure smooth upgrade from v3.5 clusters with this feature enabled. Requires experimental-enable-lease-checkpoint to be enabled.")
 	fs.IntVar(&cfg.ec.ExperimentalCompactionBatchLimit, "experimental-compaction-batch-limit", cfg.ec.ExperimentalCompactionBatchLimit, "Sets the maximum revisions deleted in each compaction batch.")
 	fs.DurationVar(&cfg.ec.ExperimentalWatchProgressNotifyInterval, "experimental-watch-progress-notify-interval", cfg.ec.ExperimentalWatchProgressNotifyInterval, "Duration of periodic watch progress notifications.")
 	fs.DurationVar(&cfg.ec.ExperimentalDowngradeCheckTime, "experimental-downgrade-check-time", cfg.ec.ExperimentalDowngradeCheckTime, "Duration of time between two downgrade status check.")
@ -353,11 +355,10 @@ func (cfg *config) parse(arguments []string) error {

 func (cfg *config) configFromCmdLine() error {
 	// user-specified logger is not setup yet, use this logger during flag parsing
-	lg, err := zap.NewProduction()
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if err != nil {
 		return err
 	}
-
 	verKey := "ETCD_VERSION"
 	if verVal := os.Getenv(verKey); verVal != "" {
 		// unset to avoid any possible side-effect.
--- a/server/etcdmain/etcd.go
+++ b/server/etcdmain/etcd.go
@ -27,6 +27,7 @@ import (
 	"time"

 	"go.etcd.io/etcd/client/pkg/v3/fileutil"
+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	"go.etcd.io/etcd/client/pkg/v3/transport"
 	"go.etcd.io/etcd/client/pkg/v3/types"
 	pkgioutil "go.etcd.io/etcd/pkg/v3/ioutil"
@ -63,7 +64,7 @@ func startEtcdOrProxyV2(args []string) {
 	if lg == nil {
 		var zapError error
 		// use this logger
-		lg, zapError = zap.NewProduction()
+		lg, zapError = logutil.CreateDefaultZapLogger(zap.InfoLevel)
 		if zapError != nil {
 			fmt.Printf("error creating zap logger %v", zapError)
 			os.Exit(1)
@ -463,6 +464,10 @@ func identifyDataDirOrDie(lg *zap.Logger, dir string) dirType {
 }

 func checkSupportArch() {
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
+	if err != nil {
+		panic(err)
+	}
 	// to add a new platform, check https://github.com/etcd-io/website/blob/main/content/en/docs/next/op-guide/supported-platform.md
 	if runtime.GOARCH == "amd64" ||
 		runtime.GOARCH == "arm64" ||
@ -474,10 +479,10 @@ func checkSupportArch() {
 	// so unset here to not parse through flag
 	defer os.Unsetenv("ETCD_UNSUPPORTED_ARCH")
 	if env, ok := os.LookupEnv("ETCD_UNSUPPORTED_ARCH"); ok && env == runtime.GOARCH {
-		fmt.Printf("running etcd on unsupported architecture %q since ETCD_UNSUPPORTED_ARCH is set\n", env)
+		lg.Info("running etcd on unsupported architecture since ETCD_UNSUPPORTED_ARCH is set", zap.String("arch", env))
 		return
 	}

-	fmt.Printf("etcd on unsupported platform without ETCD_UNSUPPORTED_ARCH=%s set\n", runtime.GOARCH)
+	lg.Error("running etcd on unsupported architecture since ETCD_UNSUPPORTED_ARCH is set", zap.String("arch", runtime.GOARCH))
 	os.Exit(1)
 }
--- a/server/etcdmain/gateway.go
+++ b/server/etcdmain/gateway.go
@ -21,6 +21,7 @@ import (
 	"os"
 	"time"

+	"go.etcd.io/etcd/client/pkg/v3/logutil"
 	"go.etcd.io/etcd/server/v3/proxy/tcpproxy"

 	"github.com/spf13/cobra"
@ -92,8 +93,7 @@ func stripSchema(eps []string) []string {
 }

 func startGateway(cmd *cobra.Command, args []string) {
-	var lg *zap.Logger
-	lg, err := zap.NewProduction()
+	lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
--- a/server/etcdmain/grpc_proxy.go
+++ b/server/etcdmain/grpc_proxy.go
@ -41,6 +41,7 @@ import (
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v3election/v3electionpb"
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v3lock/v3lockpb"
 	"go.etcd.io/etcd/server/v3/proxy/grpcproxy"
+	"go.uber.org/zap/zapgrpc"

 	grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
 	"github.com/soheilhy/cmux"
@ -163,25 +164,18 @@ func newGRPCProxyStartCommand() *cobra.Command {

 func startGRPCProxy(cmd *cobra.Command, args []string) {
 	checkArgs()
-
-	lcfg := logutil.DefaultZapLoggerConfig
+	lvl := zap.InfoLevel
 	if grpcProxyDebug {
-		lcfg.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
+		lvl = zap.DebugLevel
 		grpc.EnableTracing = true
 	}
-
-	lg, err := lcfg.Build()
+	lg, err := logutil.CreateDefaultZapLogger(lvl)
 	if err != nil {
-		log.Fatal(err)
+		panic(err)
 	}
 	defer lg.Sync()

-	var gl grpclog.LoggerV2
-	gl, err = logutil.NewGRPCLoggerV2(lcfg)
-	if err != nil {
-		log.Fatal(err)
-	}
-	grpclog.SetLoggerV2(gl)
+	grpclog.SetLoggerV2(zapgrpc.NewLogger(lg))

 	// The proxy itself (ListenCert) can have not-empty CN.
 	// The empty CN is required for grpcProxyCert.
--- a/server/etcdmain/main.go
+++ b/server/etcdmain/main.go
@ -41,9 +41,6 @@ func Main(args []string) {
 }

 func notifySystemd(lg *zap.Logger) {
-	if lg == nil {
-		lg = zap.NewExample()
-	}
 	lg.Info("notifying init daemon")
 	_, err := daemon.SdNotify(false, daemon.SdNotifyReady)
 	if err != nil {
--- a/server/etcdserver/api/etcdhttp/metrics.go
+++ b/server/etcdserver/api/etcdhttp/metrics.go
@ -25,6 +25,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"go.etcd.io/etcd/api/v3/etcdserverpb"
 	"go.etcd.io/etcd/raft/v3"
+	"go.etcd.io/etcd/server/v3/auth"
 	"go.etcd.io/etcd/server/v3/etcdserver"
 	"go.uber.org/zap"
 )
@ -39,14 +40,16 @@ const (
 // HandleMetricsHealth registers metrics and health handlers.
 func HandleMetricsHealth(lg *zap.Logger, mux *http.ServeMux, srv etcdserver.ServerV2) {
 	mux.Handle(PathMetrics, promhttp.Handler())
-	mux.Handle(PathHealth, NewHealthHandler(lg, func(excludedAlarms AlarmSet) Health { return checkV2Health(lg, srv, excludedAlarms) }))
+	mux.Handle(PathHealth, NewHealthHandler(lg, func(excludedAlarms AlarmSet, serializable bool) Health { return checkV2Health(lg, srv, excludedAlarms) }))
 }

 // HandleMetricsHealthForV3 registers metrics and health handlers. it checks health by using v3 range request
 // and its corresponding timeout.
 func HandleMetricsHealthForV3(lg *zap.Logger, mux *http.ServeMux, srv *etcdserver.EtcdServer) {
 	mux.Handle(PathMetrics, promhttp.Handler())
-	mux.Handle(PathHealth, NewHealthHandler(lg, func(excludedAlarms AlarmSet) Health { return checkV3Health(lg, srv, excludedAlarms) }))
+	mux.Handle(PathHealth, NewHealthHandler(lg, func(excludedAlarms AlarmSet, serializable bool) Health {
+		return checkV3Health(lg, srv, excludedAlarms, serializable)
+	}))
 }

 // HandlePrometheus registers prometheus handler on '/metrics'.
@ -55,7 +58,7 @@ func HandlePrometheus(mux *http.ServeMux) {
 }

 // NewHealthHandler handles '/health' requests.
-func NewHealthHandler(lg *zap.Logger, hfunc func(excludedAlarms AlarmSet) Health) http.HandlerFunc {
+func NewHealthHandler(lg *zap.Logger, hfunc func(excludedAlarms AlarmSet, serializable bool) Health) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != http.MethodGet {
 			w.Header().Set("Allow", http.MethodGet)
@ -64,7 +67,12 @@ func NewHealthHandler(lg *zap.Logger, hfunc func(excludedAlarms AlarmSet) Health
 			return
 		}
 		excludedAlarms := getExcludedAlarms(r)
-		h := hfunc(excludedAlarms)
+		// Passing the query parameter "serializable=true" ensures that the
+		// health of the local etcd is checked vs the health of the cluster.
+		// This is useful for probes attempting to validate the liveness of
+		// the etcd process vs readiness of the cluster to serve requests.
+		serializableFlag := getSerializableFlag(r)
+		h := hfunc(excludedAlarms, serializableFlag)
 		defer func() {
 			if h.Health == "true" {
 				healthSuccess.Inc()
@ -127,9 +135,13 @@ func getExcludedAlarms(r *http.Request) (alarms AlarmSet) {
 	return alarms
 }

+func getSerializableFlag(r *http.Request) bool {
+	return r.URL.Query().Get("serializable") == "true"
+}
+
 // TODO: etcdserver.ErrNoLeader in health API

-func checkHealth(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSet) Health {
+func checkHealth(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSet, serializable bool) Health {
 	h := Health{}
 	h.Health = "true"
 	as := srv.Alarms()
@ -137,8 +149,7 @@ func checkHealth(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSe
 		for _, v := range as {
 			alarmName := v.Alarm.String()
 			if _, found := excludedAlarms[alarmName]; found {
-				lg.Debug("/health excluded alarm", zap.String("alarm", alarmName))
-				delete(excludedAlarms, alarmName)
+				lg.Debug("/health excluded alarm", zap.String("alarm", v.String()))
 				continue
 			}

@ -156,11 +167,7 @@ func checkHealth(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSe
 		}
 	}

-	if len(excludedAlarms) > 0 {
-		lg.Warn("fail exclude alarms from health check", zap.String("exclude alarms", fmt.Sprintf("%+v", excludedAlarms)))
-	}
-
-	if uint64(srv.Leader()) == raft.None {
+	if !serializable && uint64(srv.Leader()) == raft.None {
 		h.Health = "false"
 		h.Reason = "RAFT NO LEADER"
 		lg.Warn("serving /health false; no leader")
@ -170,7 +177,7 @@ func checkHealth(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSe
 }

 func checkV2Health(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms AlarmSet) (h Health) {
-	if h = checkHealth(lg, srv, excludedAlarms); h.Health != "true" {
+	if h = checkHealth(lg, srv, excludedAlarms, false); h.Health != "true" {
 		return
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
@ -186,14 +193,14 @@ func checkV2Health(lg *zap.Logger, srv etcdserver.ServerV2, excludedAlarms Alarm
 	return
 }

-func checkV3Health(lg *zap.Logger, srv *etcdserver.EtcdServer, excludedAlarms AlarmSet) (h Health) {
-	if h = checkHealth(lg, srv, excludedAlarms); h.Health != "true" {
+func checkV3Health(lg *zap.Logger, srv *etcdserver.EtcdServer, excludedAlarms AlarmSet, serializable bool) (h Health) {
+	if h = checkHealth(lg, srv, excludedAlarms, serializable); h.Health != "true" {
 		return
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), srv.Cfg.ReqTimeout())
-	_, err := srv.Range(ctx, &etcdserverpb.RangeRequest{KeysOnly: true, Limit: 1})
+	_, err := srv.Range(ctx, &etcdserverpb.RangeRequest{KeysOnly: true, Limit: 1, Serializable: serializable})
 	cancel()
-	if err != nil {
+	if err != nil && err != auth.ErrUserEmpty && err != auth.ErrPermissionDenied {
 		h.Health = "false"
 		h.Reason = fmt.Sprintf("RANGE ERROR:%s", err)
 		lg.Warn("serving /health false; Range fails", zap.Error(err))
--- a/server/etcdserver/api/etcdhttp/metrics_test.go
+++ b/server/etcdserver/api/etcdhttp/metrics_test.go
@ -78,6 +78,12 @@ func TestHealthHandler(t *testing.T) {
 			http.StatusOK,
 			"true",
 		},
+		{
+			[]*pb.AlarmMember{{MemberID: uint64(1), Alarm: pb.AlarmType_NOSPACE}, {MemberID: uint64(2), Alarm: pb.AlarmType_NOSPACE}, {MemberID: uint64(3), Alarm: pb.AlarmType_NOSPACE}},
+			"/health?exclude=NOSPACE",
+			http.StatusOK,
+			"true",
+		},
 		{
 			[]*pb.AlarmMember{{MemberID: uint64(0), Alarm: pb.AlarmType_NOSPACE}, {MemberID: uint64(1), Alarm: pb.AlarmType_CORRUPT}},
 			"/health?exclude=NOSPACE",
--- a/server/etcdserver/api/membership/cluster.go
+++ b/server/etcdserver/api/membership/cluster.go
@ -20,6 +20,7 @@ import (
 	"crypto/sha1"
 	"encoding/binary"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"path"
 	"sort"
@ -32,8 +33,10 @@ import (
 	"go.etcd.io/etcd/pkg/v3/netutil"
 	"go.etcd.io/etcd/raft/v3"
 	"go.etcd.io/etcd/raft/v3/raftpb"
+	"go.etcd.io/etcd/server/v3/etcdserver/api/v2error"
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v2store"
 	"go.etcd.io/etcd/server/v3/mvcc/backend"
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"

 	"github.com/coreos/go-semver/semver"
 	"github.com/prometheus/client_golang/prometheus"
@ -253,12 +256,12 @@ func (c *RaftCluster) Recover(onSet func(*zap.Logger, *semver.Version)) {
 	c.Lock()
 	defer c.Unlock()

-	if c.be != nil {
-		c.version = clusterVersionFromBackend(c.lg, c.be)
-		c.members, c.removed = membersFromBackend(c.lg, c.be)
-	} else {
+	if c.v2store != nil {
 		c.version = clusterVersionFromStore(c.lg, c.v2store)
 		c.members, c.removed = membersFromStore(c.lg, c.v2store)
+	} else {
+		c.version = clusterVersionFromBackend(c.lg, c.be)
+		c.members, c.removed = membersFromBackend(c.lg, c.be)
 	}

 	if c.be != nil {
@ -380,11 +383,37 @@ func (c *RaftCluster) ValidateConfigurationChange(cc raftpb.ConfChange) error {
 func (c *RaftCluster) AddMember(m *Member, shouldApplyV3 ShouldApplyV3) {
 	c.Lock()
 	defer c.Unlock()
+
+	var v2Err, beErr error
 	if c.v2store != nil {
-		mustSaveMemberToStore(c.lg, c.v2store, m)
+		v2Err = unsafeSaveMemberToStore(c.lg, c.v2store, m)
+		if v2Err != nil {
+			if e, ok := v2Err.(*v2error.Error); !ok || e.ErrorCode != v2error.EcodeNodeExist {
+				c.lg.Panic(
+					"failed to save member to store",
+					zap.String("member-id", m.ID.String()),
+					zap.Error(v2Err),
+				)
+			}
+		}
 	}
 	if c.be != nil && shouldApplyV3 {
-		mustSaveMemberToBackend(c.lg, c.be, m)
+		beErr = unsafeSaveMemberToBackend(c.lg, c.be, m)
+		if beErr != nil && !errors.Is(beErr, errMemberAlreadyExist) {
+			c.lg.Panic(
+				"failed to save member to backend",
+				zap.String("member-id", m.ID.String()),
+				zap.Error(beErr),
+			)
+		}
+	}
+	// Panic if both storeV2 and backend report member already exist.
+	if v2Err != nil && (beErr != nil || c.be == nil) {
+		c.lg.Panic(
+			"failed to save member to store",
+			zap.String("member-id", m.ID.String()),
+			zap.Error(v2Err),
+		)
 	}

 	c.members[m.ID] = m
@ -403,11 +432,36 @@ func (c *RaftCluster) AddMember(m *Member, shouldApplyV3 ShouldApplyV3) {
 func (c *RaftCluster) RemoveMember(id types.ID, shouldApplyV3 ShouldApplyV3) {
 	c.Lock()
 	defer c.Unlock()
+	var v2Err, beErr error
 	if c.v2store != nil {
-		mustDeleteMemberFromStore(c.lg, c.v2store, id)
+		v2Err = unsafeDeleteMemberFromStore(c.v2store, id)
+		if v2Err != nil {
+			if e, ok := v2Err.(*v2error.Error); !ok || e.ErrorCode != v2error.EcodeKeyNotFound {
+				c.lg.Panic(
+					"failed to delete member from store",
+					zap.String("member-id", id.String()),
+					zap.Error(v2Err),
+				)
+			}
+		}
 	}
 	if c.be != nil && shouldApplyV3 {
-		mustDeleteMemberFromBackend(c.be, id)
+		beErr = unsafeDeleteMemberFromBackend(c.be, id)
+		if beErr != nil && !errors.Is(beErr, errMemberNotFound) {
+			c.lg.Panic(
+				"failed to delete member from backend",
+				zap.String("member-id", id.String()),
+				zap.Error(beErr),
+			)
+		}
+	}
+	// Panic if both storeV2 and backend report member not found.
+	if v2Err != nil && (beErr != nil || c.be == nil) {
+		c.lg.Panic(
+			"failed to delete member from store",
+			zap.String("member-id", id.String()),
+			zap.Error(v2Err),
+		)
 	}

 	m, ok := c.members[id]
@ -442,7 +496,7 @@ func (c *RaftCluster) UpdateAttributes(id types.ID, attr Attributes, shouldApply
 			mustUpdateMemberAttrInStore(c.lg, c.v2store, m)
 		}
 		if c.be != nil && shouldApplyV3 {
-			mustSaveMemberToBackend(c.lg, c.be, m)
+			unsafeSaveMemberToBackend(c.lg, c.be, m)
 		}
 		return
 	}
@ -475,7 +529,7 @@ func (c *RaftCluster) PromoteMember(id types.ID, shouldApplyV3 ShouldApplyV3) {
 		mustUpdateMemberInStore(c.lg, c.v2store, c.members[id])
 	}
 	if c.be != nil && shouldApplyV3 {
-		mustSaveMemberToBackend(c.lg, c.be, c.members[id])
+		unsafeSaveMemberToBackend(c.lg, c.be, c.members[id])
 	}

 	c.lg.Info(
@ -494,7 +548,7 @@ func (c *RaftCluster) UpdateRaftAttributes(id types.ID, raftAttr RaftAttributes,
 		mustUpdateMemberInStore(c.lg, c.v2store, c.members[id])
 	}
 	if c.be != nil && shouldApplyV3 {
-		mustSaveMemberToBackend(c.lg, c.be, c.members[id])
+		unsafeSaveMemberToBackend(c.lg, c.be, c.members[id])
 	}

 	c.lg.Info(
@ -700,7 +754,7 @@ func clusterVersionFromBackend(lg *zap.Logger, be backend.Backend) *semver.Versi
 	tx := be.ReadTx()
 	tx.RLock()
 	defer tx.RUnlock()
-	keys, vals := tx.UnsafeRange(clusterBucketName, ckey, nil, 0)
+	keys, vals := tx.UnsafeRange(buckets.Cluster, ckey, nil, 0)
 	if len(keys) == 0 {
 		return nil
 	}
@ -719,7 +773,7 @@ func downgradeInfoFromBackend(lg *zap.Logger, be backend.Backend) *DowngradeInfo
 	tx := be.ReadTx()
 	tx.Lock()
 	defer tx.Unlock()
-	keys, vals := tx.UnsafeRange(clusterBucketName, dkey, nil, 0)
+	keys, vals := tx.UnsafeRange(buckets.Cluster, dkey, nil, 0)
 	if len(keys) == 0 {
 		return nil
 	}
@ -869,7 +923,7 @@ func (c *RaftCluster) PushMembershipToStorage() {
 	if c.be != nil {
 		TrimMembershipFromBackend(c.lg, c.be)
 		for _, m := range c.members {
-			mustSaveMemberToBackend(c.lg, c.be, m)
+			unsafeSaveMemberToBackend(c.lg, c.be, m)
 		}
 	}
 	if c.v2store != nil {
--- a/server/etcdserver/api/membership/cluster_test.go
+++ b/server/etcdserver/api/membership/cluster_test.go
@ -20,8 +20,12 @@ import (
 	"path"
 	"reflect"
 	"testing"
+	"time"

 	"github.com/coreos/go-semver/semver"
+	"github.com/stretchr/testify/assert"
+	betesting "go.etcd.io/etcd/server/v3/mvcc/backend/testing"
+	"go.uber.org/zap"
 	"go.uber.org/zap/zaptest"

 	"go.etcd.io/etcd/client/pkg/v3/testutil"
@ -29,8 +33,6 @@ import (
 	"go.etcd.io/etcd/raft/v3/raftpb"
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v2store"
 	"go.etcd.io/etcd/server/v3/mock/mockstore"
-
-	"go.uber.org/zap"
 )

 func TestClusterMember(t *testing.T) {
@ -1019,3 +1021,193 @@ func TestIsVersionChangable(t *testing.T) {
 		})
 	}
 }
+
+func TestAddMemberSyncsBackendAndStoreV2(t *testing.T) {
+	now := time.Now()
+	alice := NewMember("", nil, "alice", &now)
+
+	tcs := []struct {
+		name string
+
+		storeV2Nil     bool
+		backendNil     bool
+		storeV2Members []*Member
+		backendMembers []*Member
+
+		expectPanics  bool
+		expectMembers map[types.ID]*Member
+	}{
+		{
+			name: "Adding new member should succeed",
+		},
+		{
+			name:           "Adding member should succeed if it was only in storeV2",
+			storeV2Members: []*Member{alice},
+		},
+		{
+			name:           "Adding member should succeed if it was only in backend",
+			backendMembers: []*Member{alice},
+		},
+		{
+			name:           "Adding member should fail if it exists in both",
+			storeV2Members: []*Member{alice},
+			backendMembers: []*Member{alice},
+			expectPanics:   true,
+		},
+		{
+			name:           "Adding member should fail if it exists in storeV2 and backend is nil",
+			storeV2Members: []*Member{alice},
+			backendNil:     true,
+			expectPanics:   true,
+		},
+		{
+			name:           "Adding member should succeed if it exists in backend and storageV2 is nil",
+			storeV2Nil:     true,
+			backendMembers: []*Member{alice},
+		},
+		{
+			name:           "Adding new member should succeed if backend is nil",
+			storeV2Members: []*Member{},
+			backendNil:     true,
+		},
+		{
+			name:           "Adding new member should fail if storageV2 is nil",
+			storeV2Nil:     true,
+			backendMembers: []*Member{},
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			lg := zaptest.NewLogger(t)
+			be, _ := betesting.NewDefaultTmpBackend(t)
+			defer be.Close()
+			mustCreateBackendBuckets(be)
+			st := v2store.New()
+			for _, m := range tc.backendMembers {
+				unsafeSaveMemberToBackend(lg, be, m)
+			}
+			be.ForceCommit()
+			for _, m := range tc.storeV2Members {
+				mustSaveMemberToStore(lg, st, m)
+			}
+			cluster := NewCluster(lg)
+			if !tc.backendNil {
+				cluster.SetBackend(be)
+			}
+			if !tc.storeV2Nil {
+				cluster.SetStore(st)
+			}
+			if tc.expectPanics {
+				assert.Panics(t, func() {
+					cluster.AddMember(alice, ApplyBoth)
+				})
+			} else {
+				cluster.AddMember(alice, ApplyBoth)
+			}
+			if !tc.storeV2Nil {
+				storeV2Members, _ := membersFromStore(lg, st)
+				assert.Equal(t, map[types.ID]*Member{alice.ID: alice}, storeV2Members)
+			}
+			if !tc.backendNil {
+				be.ForceCommit()
+				beMembers, _ := mustReadMembersFromBackend(lg, be)
+				assert.Equal(t, map[types.ID]*Member{alice.ID: alice}, beMembers)
+			}
+		})
+	}
+}
+
+func TestRemoveMemberSyncsBackendAndStoreV2(t *testing.T) {
+	now := time.Now()
+	alice := NewMember("", nil, "alice", &now)
+
+	tcs := []struct {
+		name string
+
+		storeV2Nil     bool
+		backendNil     bool
+		storeV2Members []*Member
+		backendMembers []*Member
+
+		expectMembers []*Member
+		expectPanics  bool
+	}{
+		{
+			name:         "Removing new member should fail",
+			expectPanics: true,
+		},
+		{
+			name:           "Removing member should succeed if it was only in storeV2",
+			storeV2Members: []*Member{alice},
+		},
+		{
+			name:           "Removing member should succeed if it was only in backend",
+			backendMembers: []*Member{alice},
+		},
+		{
+			name:           "Removing member should succeed if it exists in both",
+			storeV2Members: []*Member{alice},
+			backendMembers: []*Member{alice},
+		},
+		{
+			name:           "Removing new member should fail if backend is nil",
+			storeV2Members: []*Member{},
+			backendNil:     true,
+			expectPanics:   true,
+		},
+		{
+			name:           "Removing new member should succeed if storageV2 is nil",
+			storeV2Nil:     true,
+			backendMembers: []*Member{},
+		},
+		{
+			name:           "Removing member should succeed if it exists in v2storage and backend is nil",
+			storeV2Members: []*Member{alice},
+			backendNil:     true,
+		},
+		{
+			name:           "Removing member should succeed if it exists in backend and storageV2 is nil",
+			storeV2Nil:     true,
+			backendMembers: []*Member{alice},
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			lg := zaptest.NewLogger(t)
+			be, _ := betesting.NewDefaultTmpBackend(t)
+			defer be.Close()
+			mustCreateBackendBuckets(be)
+			st := v2store.New()
+			for _, m := range tc.backendMembers {
+				unsafeSaveMemberToBackend(lg, be, m)
+			}
+			be.ForceCommit()
+			for _, m := range tc.storeV2Members {
+				mustSaveMemberToStore(lg, st, m)
+			}
+			cluster := NewCluster(lg)
+			if !tc.backendNil {
+				cluster.SetBackend(be)
+			}
+			if !tc.storeV2Nil {
+				cluster.SetStore(st)
+			}
+			if tc.expectPanics {
+				assert.Panics(t, func() {
+					cluster.RemoveMember(alice.ID, ApplyBoth)
+				})
+			} else {
+				cluster.RemoveMember(alice.ID, ApplyBoth)
+			}
+			if !tc.storeV2Nil {
+				storeV2Members, _ := membersFromStore(lg, st)
+				assert.Equal(t, map[types.ID]*Member{}, storeV2Members)
+			}
+			if !tc.backendNil {
+				be.ForceCommit()
+				beMembers, _ := mustReadMembersFromBackend(lg, be)
+				assert.Equal(t, map[types.ID]*Member{}, beMembers)
+			}
+		})
+	}
+}
--- a/server/etcdserver/api/membership/confstate.go
+++ b/server/etcdserver/api/membership/confstate.go
@ -19,8 +19,8 @@ import (
 	"log"

 	"go.etcd.io/etcd/raft/v3/raftpb"
-	"go.etcd.io/etcd/server/v3/mvcc"
 	"go.etcd.io/etcd/server/v3/mvcc/backend"
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"
 	"go.uber.org/zap"
 )

@ -36,13 +36,13 @@ func MustUnsafeSaveConfStateToBackend(lg *zap.Logger, tx backend.BatchTx, confSt
 		lg.Panic("Cannot marshal raftpb.ConfState", zap.Stringer("conf-state", confState), zap.Error(err))
 	}

-	tx.UnsafePut(mvcc.MetaBucketName, confStateKey, confStateBytes)
+	tx.UnsafePut(buckets.Meta, confStateKey, confStateBytes)
 }

 // UnsafeConfStateFromBackend retrieves ConfState from the backend.
 // Returns nil if confState in backend is not persisted (e.g. backend writen by <v3.5).
 func UnsafeConfStateFromBackend(lg *zap.Logger, tx backend.ReadTx) *raftpb.ConfState {
-	keys, vals := tx.UnsafeRange(mvcc.MetaBucketName, confStateKey, nil, 0)
+	keys, vals := tx.UnsafeRange(buckets.Meta, confStateKey, nil, 0)
 	if len(keys) == 0 {
 		return nil
 	}
--- a/server/etcdserver/api/membership/store.go
+++ b/server/etcdserver/api/membership/store.go
@ -15,6 +15,7 @@
 package membership

 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"path"
@ -22,6 +23,7 @@ import (
 	"go.etcd.io/etcd/client/pkg/v3/types"
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v2store"
 	"go.etcd.io/etcd/server/v3/mvcc/backend"
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"

 	"github.com/coreos/go-semver/semver"
 	"go.uber.org/zap"
@ -36,15 +38,13 @@ const (
 )

 var (
-	membersBucketName        = []byte("members")
-	membersRemovedBucketName = []byte("members_removed")
-	clusterBucketName        = []byte("cluster")
-
 	StoreMembersPrefix        = path.Join(storePrefix, "members")
 	storeRemovedMembersPrefix = path.Join(storePrefix, "removed_members")
+	errMemberAlreadyExist     = fmt.Errorf("member already exists")
+	errMemberNotFound         = fmt.Errorf("member not found")
 )

-func mustSaveMemberToBackend(lg *zap.Logger, be backend.Backend, m *Member) {
+func unsafeSaveMemberToBackend(lg *zap.Logger, be backend.Backend, m *Member) error {
 	mkey := backendMemberKey(m.ID)
 	mvalue, err := json.Marshal(m)
 	if err != nil {
@ -52,29 +52,48 @@ func mustSaveMemberToBackend(lg *zap.Logger, be backend.Backend, m *Member) {
 	}

 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()
-	tx.UnsafePut(membersBucketName, mkey, mvalue)
+	if unsafeMemberExists(tx, mkey) {
+		return errMemberAlreadyExist
+	}
+	tx.UnsafePut(buckets.Members, mkey, mvalue)
+	return nil
 }

 // TrimClusterFromBackend removes all information about cluster (versions)
 // from the v3 backend.
 func TrimClusterFromBackend(be backend.Backend) error {
 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockOutsideApply()
 	defer tx.Unlock()
-	tx.UnsafeDeleteBucket(clusterBucketName)
+	tx.UnsafeDeleteBucket(buckets.Cluster)
 	return nil
 }

-func mustDeleteMemberFromBackend(be backend.Backend, id types.ID) {
+func unsafeDeleteMemberFromBackend(be backend.Backend, id types.ID) error {
 	mkey := backendMemberKey(id)

 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()
-	tx.UnsafeDelete(membersBucketName, mkey)
-	tx.UnsafePut(membersRemovedBucketName, mkey, []byte("removed"))
+	tx.UnsafePut(buckets.MembersRemoved, mkey, []byte("removed"))
+	if !unsafeMemberExists(tx, mkey) {
+		return errMemberNotFound
+	}
+	tx.UnsafeDelete(buckets.Members, mkey)
+	return nil
+}
+
+func unsafeMemberExists(tx backend.ReadTx, mkey []byte) bool {
+	var found bool
+	tx.UnsafeForEach(buckets.Members, func(k, v []byte) error {
+		if bytes.Equal(k, mkey) {
+			found = true
+		}
+		return nil
+	})
+	return found
 }

 func readMembersFromBackend(lg *zap.Logger, be backend.Backend) (map[types.ID]*Member, map[types.ID]bool, error) {
@ -84,7 +103,7 @@ func readMembersFromBackend(lg *zap.Logger, be backend.Backend) (map[types.ID]*M
 	tx := be.ReadTx()
 	tx.RLock()
 	defer tx.RUnlock()
-	err := tx.UnsafeForEach(membersBucketName, func(k, v []byte) error {
+	err := tx.UnsafeForEach(buckets.Members, func(k, v []byte) error {
 		memberId := mustParseMemberIDFromBytes(lg, k)
 		m := &Member{ID: memberId}
 		if err := json.Unmarshal(v, &m); err != nil {
@ -97,7 +116,7 @@ func readMembersFromBackend(lg *zap.Logger, be backend.Backend) (map[types.ID]*M
 		return nil, nil, fmt.Errorf("couldn't read members from backend: %w", err)
 	}

-	err = tx.UnsafeForEach(membersRemovedBucketName, func(k, v []byte) error {
+	err = tx.UnsafeForEach(buckets.MembersRemoved, func(k, v []byte) error {
 		memberId := mustParseMemberIDFromBytes(lg, k)
 		removed[memberId] = true
 		return nil
@ -121,10 +140,10 @@ func mustReadMembersFromBackend(lg *zap.Logger, be backend.Backend) (map[types.I
 func TrimMembershipFromBackend(lg *zap.Logger, be backend.Backend) error {
 	lg.Info("Trimming membership information from the backend...")
 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockOutsideApply()
 	defer tx.Unlock()
-	err := tx.UnsafeForEach(membersBucketName, func(k, v []byte) error {
-		tx.UnsafeDelete(membersBucketName, k)
+	err := tx.UnsafeForEach(buckets.Members, func(k, v []byte) error {
+		tx.UnsafeDelete(buckets.Members, k)
 		lg.Debug("Removed member from the backend",
 			zap.Stringer("member", mustParseMemberIDFromBytes(lg, k)))
 		return nil
@ -132,8 +151,8 @@ func TrimMembershipFromBackend(lg *zap.Logger, be backend.Backend) error {
 	if err != nil {
 		return err
 	}
-	return tx.UnsafeForEach(membersRemovedBucketName, func(k, v []byte) error {
-		tx.UnsafeDelete(membersRemovedBucketName, k)
+	return tx.UnsafeForEach(buckets.MembersRemoved, func(k, v []byte) error {
+		tx.UnsafeDelete(buckets.MembersRemoved, k)
 		lg.Debug("Removed removed_member from the backend",
 			zap.Stringer("member", mustParseMemberIDFromBytes(lg, k)))
 		return nil
@ -166,9 +185,9 @@ func mustSaveClusterVersionToBackend(be backend.Backend, ver *semver.Version) {
 	ckey := backendClusterVersionKey()

 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()
-	tx.UnsafePut(clusterBucketName, ckey, []byte(ver.String()))
+	tx.UnsafePut(buckets.Cluster, ckey, []byte(ver.String()))
 }

 // The field is populated since etcd v3.5.
@ -179,41 +198,40 @@ func mustSaveDowngradeToBackend(lg *zap.Logger, be backend.Backend, downgrade *D
 		lg.Panic("failed to marshal downgrade information", zap.Error(err))
 	}
 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockInsideApply()
 	defer tx.Unlock()
-	tx.UnsafePut(clusterBucketName, dkey, dvalue)
+	tx.UnsafePut(buckets.Cluster, dkey, dvalue)
 }

 func mustSaveMemberToStore(lg *zap.Logger, s v2store.Store, m *Member) {
+	err := unsafeSaveMemberToStore(lg, s, m)
+	if err != nil {
+		lg.Panic(
+			"failed to save member to store",
+			zap.String("member-id", m.ID.String()),
+			zap.Error(err),
+		)
+	}
+}
+
+func unsafeSaveMemberToStore(lg *zap.Logger, s v2store.Store, m *Member) error {
 	b, err := json.Marshal(m.RaftAttributes)
 	if err != nil {
 		lg.Panic("failed to marshal raftAttributes", zap.Error(err))
 	}
 	p := path.Join(MemberStoreKey(m.ID), raftAttributesSuffix)
-	if _, err := s.Create(p, false, string(b), false, v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
-		lg.Panic(
-			"failed to save member to store",
-			zap.String("path", p),
-			zap.Error(err),
-		)
-	}
+	_, err = s.Create(p, false, string(b), false, v2store.TTLOptionSet{ExpireTime: v2store.Permanent})
+	return err
 }

-func mustDeleteMemberFromStore(lg *zap.Logger, s v2store.Store, id types.ID) {
+func unsafeDeleteMemberFromStore(s v2store.Store, id types.ID) error {
 	if _, err := s.Delete(MemberStoreKey(id), true, true); err != nil {
-		lg.Panic(
-			"failed to delete member from store",
-			zap.String("path", MemberStoreKey(id)),
-			zap.Error(err),
-		)
+		return err
 	}
 	if _, err := s.Create(RemovedMemberStoreKey(id), false, "", false, v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
-		lg.Panic(
-			"failed to create removedMember",
-			zap.String("path", RemovedMemberStoreKey(id)),
-			zap.Error(err),
-		)
+		return err
 	}
+	return nil
 }

 func mustUpdateMemberInStore(lg *zap.Logger, s v2store.Store, m *Member) {
@ -298,11 +316,11 @@ func backendDowngradeKey() []byte {

 func mustCreateBackendBuckets(be backend.Backend) {
 	tx := be.BatchTx()
-	tx.Lock()
+	tx.LockOutsideApply()
 	defer tx.Unlock()
-	tx.UnsafeCreateBucket(membersBucketName)
-	tx.UnsafeCreateBucket(membersRemovedBucketName)
-	tx.UnsafeCreateBucket(clusterBucketName)
+	tx.UnsafeCreateBucket(buckets.Members)
+	tx.UnsafeCreateBucket(buckets.MembersRemoved)
+	tx.UnsafeCreateBucket(buckets.Cluster)
 }

 func MemberStoreKey(id types.ID) string {
--- a/server/etcdserver/api/rafthttp/stream_test.go
+++ b/server/etcdserver/api/rafthttp/stream_test.go
@ -187,7 +187,7 @@ func TestStreamReaderDialResult(t *testing.T) {

 // TestStreamReaderStopOnDial tests a stream reader closes the connection on stop.
 func TestStreamReaderStopOnDial(t *testing.T) {
-	testutil.BeforeTest(t)
+	testutil.RegisterLeakDetection(t)
 	h := http.Header{}
 	h.Add("X-Server-Version", version.Version)
 	tr := &respWaitRoundTripper{rrt: &respRoundTripper{code: http.StatusOK, header: h}}
--- a/server/etcdserver/api/v3alarm/alarms.go
+++ b/server/etcdserver/api/v3alarm/alarms.go
@ -21,14 +21,11 @@ import (
 	pb "go.etcd.io/etcd/api/v3/etcdserverpb"
 	"go.etcd.io/etcd/client/pkg/v3/types"
 	"go.etcd.io/etcd/server/v3/mvcc/backend"
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"

 	"go.uber.org/zap"
 )

-var (
-	alarmBucketName = []byte("alarm")
-)
-
 type BackendGetter interface {
 	Backend() backend.Backend
 }
@ -68,8 +65,8 @@ func (a *AlarmStore) Activate(id types.ID, at pb.AlarmType) *pb.AlarmMember {
 	}

 	b := a.bg.Backend()
-	b.BatchTx().Lock()
-	b.BatchTx().UnsafePut(alarmBucketName, v, nil)
+	b.BatchTx().LockInsideApply()
+	b.BatchTx().UnsafePut(buckets.Alarm, v, nil)
 	b.BatchTx().Unlock()

 	return newAlarm
@ -97,8 +94,8 @@ func (a *AlarmStore) Deactivate(id types.ID, at pb.AlarmType) *pb.AlarmMember {
 	}

 	b := a.bg.Backend()
-	b.BatchTx().Lock()
-	b.BatchTx().UnsafeDelete(alarmBucketName, v)
+	b.BatchTx().LockInsideApply()
+	b.BatchTx().UnsafeDelete(buckets.Alarm, v)
 	b.BatchTx().Unlock()

 	return m
@ -125,9 +122,9 @@ func (a *AlarmStore) restore() error {
 	b := a.bg.Backend()
 	tx := b.BatchTx()

-	tx.Lock()
-	tx.UnsafeCreateBucket(alarmBucketName)
-	err := tx.UnsafeForEach(alarmBucketName, func(k, v []byte) error {
+	tx.LockOutsideApply()
+	tx.UnsafeCreateBucket(buckets.Alarm)
+	err := tx.UnsafeForEach(buckets.Alarm, func(k, v []byte) error {
 		var m pb.AlarmMember
 		if err := m.Unmarshal(k); err != nil {
 			return err
--- a/server/etcdserver/api/v3rpc/grpc.go
+++ b/server/etcdserver/api/v3rpc/grpc.go
@ -36,19 +36,21 @@ const (
 	maxSendBytes      = math.MaxInt32
 )

-func Server(s *etcdserver.EtcdServer, tls *tls.Config, gopts ...grpc.ServerOption) *grpc.Server {
+func Server(s *etcdserver.EtcdServer, tls *tls.Config, interceptor grpc.UnaryServerInterceptor, gopts ...grpc.ServerOption) *grpc.Server {
 	var opts []grpc.ServerOption
 	opts = append(opts, grpc.CustomCodec(&codec{}))
 	if tls != nil {
 		bundle := credentials.NewBundle(credentials.Config{TLSConfig: tls})
 		opts = append(opts, grpc.Creds(bundle.TransportCredentials()))
 	}
-
 	chainUnaryInterceptors := []grpc.UnaryServerInterceptor{
 		newLogUnaryInterceptor(s),
 		newUnaryInterceptor(s),
 		grpc_prometheus.UnaryServerInterceptor,
 	}
+	if interceptor != nil {
+		chainUnaryInterceptors = append(chainUnaryInterceptors, interceptor)
+	}

 	chainStreamInterceptors := []grpc.StreamServerInterceptor{
 		newStreamInterceptor(s),
--- a/server/etcdserver/api/v3rpc/util.go
+++ b/server/etcdserver/api/v3rpc/util.go
@ -53,6 +53,7 @@ var toGRPCErrorMap = map[error]error{
 	etcdserver.ErrTimeout:                    rpctypes.ErrGRPCTimeout,
 	etcdserver.ErrTimeoutDueToLeaderFail:     rpctypes.ErrGRPCTimeoutDueToLeaderFail,
 	etcdserver.ErrTimeoutDueToConnectionLost: rpctypes.ErrGRPCTimeoutDueToConnectionLost,
+	etcdserver.ErrTimeoutWaitAppliedIndex:    rpctypes.ErrGRPCTimeoutWaitAppliedIndex,
 	etcdserver.ErrUnhealthy:                  rpctypes.ErrGRPCUnhealthy,
 	etcdserver.ErrKeyNotFound:                rpctypes.ErrGRPCKeyNotFound,
 	etcdserver.ErrCorrupt:                    rpctypes.ErrGRPCCorrupt,
@ -77,12 +78,14 @@ var toGRPCErrorMap = map[error]error{
 	auth.ErrRoleNotFound:         rpctypes.ErrGRPCRoleNotFound,
 	auth.ErrRoleEmpty:            rpctypes.ErrGRPCRoleEmpty,
 	auth.ErrAuthFailed:           rpctypes.ErrGRPCAuthFailed,
+	auth.ErrPermissionNotGiven:   rpctypes.ErrGRPCPermissionNotGiven,
 	auth.ErrPermissionDenied:     rpctypes.ErrGRPCPermissionDenied,
 	auth.ErrRoleNotGranted:       rpctypes.ErrGRPCRoleNotGranted,
 	auth.ErrPermissionNotGranted: rpctypes.ErrGRPCPermissionNotGranted,
 	auth.ErrAuthNotEnabled:       rpctypes.ErrGRPCAuthNotEnabled,
 	auth.ErrInvalidAuthToken:     rpctypes.ErrGRPCInvalidAuthToken,
 	auth.ErrInvalidAuthMgmt:      rpctypes.ErrGRPCInvalidAuthMgmt,
+	auth.ErrAuthOldRevision:      rpctypes.ErrGRPCAuthOldRevision,

 	// In sync with status.FromContextError
 	context.Canceled:         rpctypes.ErrGRPCCanceled,
--- a/server/etcdserver/apply.go
+++ b/server/etcdserver/apply.go
@ -721,6 +721,9 @@ func (a *applierV3backend) Alarm(ar *pb.AlarmRequest) (*pb.AlarmResponse, error)
 	case pb.AlarmRequest_GET:
 		resp.Alarms = a.s.alarmStore.Get(ar.Alarm)
 	case pb.AlarmRequest_ACTIVATE:
+		if ar.Alarm == pb.AlarmType_NONE {
+			break
+		}
 		m := a.s.alarmStore.Activate(types.ID(ar.MemberID), ar.Alarm)
 		if m == nil {
 			break
@ -738,7 +741,7 @@ func (a *applierV3backend) Alarm(ar *pb.AlarmRequest) (*pb.AlarmResponse, error)
 		case pb.AlarmType_NOSPACE:
 			a.s.applyV3 = newApplierV3Capped(a)
 		default:
-			lg.Warn("unimplemented alarm activation", zap.String("alarm", fmt.Sprintf("%+v", m)))
+			lg.Panic("unimplemented alarm activation", zap.String("alarm", fmt.Sprintf("%+v", m)))
 		}
 	case pb.AlarmRequest_DEACTIVATE:
 		m := a.s.alarmStore.Deactivate(types.ID(ar.MemberID), ar.Alarm)
--- a/server/etcdserver/apply_v2.go
+++ b/server/etcdserver/apply_v2.go
@ -36,7 +36,7 @@ const v2Version = "v2"
 type ApplierV2 interface {
 	Delete(r *RequestV2) Response
 	Post(r *RequestV2) Response
-	Put(r *RequestV2) Response
+	Put(r *RequestV2, shouldApplyV3 membership.ShouldApplyV3) Response
 	QGet(r *RequestV2) Response
 	Sync(r *RequestV2) Response
 }
@ -67,7 +67,7 @@ func (a *applierV2store) Post(r *RequestV2) Response {
 	return toResponse(a.store.Create(r.Path, r.Dir, r.Val, true, r.TTLOptions()))
 }

-func (a *applierV2store) Put(r *RequestV2) Response {
+func (a *applierV2store) Put(r *RequestV2, shouldApplyV3 membership.ShouldApplyV3) Response {
 	ttlOptions := r.TTLOptions()
 	exists, existsSet := pbutil.GetBool(r.PrevExist)
 	switch {
@ -89,7 +89,7 @@ func (a *applierV2store) Put(r *RequestV2) Response {
 				a.lg.Panic("failed to unmarshal", zap.String("value", r.Val), zap.Error(err))
 			}
 			if a.cluster != nil {
-				a.cluster.UpdateAttributes(id, attr, true)
+				a.cluster.UpdateAttributes(id, attr, shouldApplyV3)
 			}
 			// return an empty response since there is no consumer.
 			return Response{}
@ -98,7 +98,7 @@ func (a *applierV2store) Put(r *RequestV2) Response {
 		if r.Path == membership.StoreClusterVersionKey() {
 			if a.cluster != nil {
 				// persist to backend given v2store can be very stale
-				a.cluster.SetVersion(semver.Must(semver.NewVersion(r.Val)), api.UpdateCapability, membership.ApplyBoth)
+				a.cluster.SetVersion(semver.Must(semver.NewVersion(r.Val)), api.UpdateCapability, shouldApplyV3)
 			}
 			return Response{}
 		}
@ -117,7 +117,7 @@ func (a *applierV2store) Sync(r *RequestV2) Response {

 // applyV2Request interprets r as a call to v2store.X
 // and returns a Response interpreted from v2store.Event
-func (s *EtcdServer) applyV2Request(r *RequestV2) (resp Response) {
+func (s *EtcdServer) applyV2Request(r *RequestV2, shouldApplyV3 membership.ShouldApplyV3) (resp Response) {
 	stringer := panicAlternativeStringer{
 		stringer:    r,
 		alternative: func() string { return fmt.Sprintf("id:%d,method:%s,path:%s", r.ID, r.Method, r.Path) },
@ -132,7 +132,7 @@ func (s *EtcdServer) applyV2Request(r *RequestV2) (resp Response) {
 	case "POST":
 		return s.applyV2.Post(r)
 	case "PUT":
-		return s.applyV2.Put(r)
+		return s.applyV2.Put(r, shouldApplyV3)
 	case "DELETE":
 		return s.applyV2.Delete(r)
 	case "QGET":
--- a/server/etcdserver/backend.go
+++ b/server/etcdserver/backend.go
@ -99,7 +99,7 @@ func openBackend(cfg config.ServerConfig, hooks backend.Hooks) backend.Backend {
 func recoverSnapshotBackend(cfg config.ServerConfig, oldbe backend.Backend, snapshot raftpb.Snapshot, beExist bool, hooks backend.Hooks) (backend.Backend, error) {
 	consistentIndex := uint64(0)
 	if beExist {
-		consistentIndex, _ = cindex.ReadConsistentIndex(oldbe.BatchTx())
+		consistentIndex, _ = cindex.ReadConsistentIndex(oldbe.ReadTx())
 	}
 	if snapshot.Metadata.Index <= consistentIndex {
 		return oldbe, nil
--- a/server/etcdserver/cindex/cindex.go
+++ b/server/etcdserver/cindex/cindex.go
@ -20,17 +20,12 @@ import (
 	"sync/atomic"

 	"go.etcd.io/etcd/server/v3/mvcc/backend"
-)
-
-var (
-	MetaBucketName = []byte("meta")
-
-	ConsistentIndexKeyName = []byte("consistent_index")
-	TermKeyName            = []byte("term")
+	"go.etcd.io/etcd/server/v3/mvcc/buckets"
 )

 type Backend interface {
 	BatchTx() backend.BatchTx
+	ReadTx() backend.ReadTx
 }

 // ConsistentIndexer is an interface that wraps the Get/Set/Save method for consistentIndex.
@ -39,9 +34,18 @@ type ConsistentIndexer interface {
 	// ConsistentIndex returns the consistent index of current executing entry.
 	ConsistentIndex() uint64

+	// ConsistentApplyingIndex returns the consistent applying index of current executing entry.
+	ConsistentApplyingIndex() (uint64, uint64)
+
+	// UnsafeConsistentIndex is similar to ConsistentIndex, but it doesn't lock the transaction.
+	UnsafeConsistentIndex() uint64
+
 	// SetConsistentIndex set the consistent index of current executing entry.
 	SetConsistentIndex(v uint64, term uint64)

+	// SetConsistentApplyingIndex set the consistent applying index of current executing entry.
+	SetConsistentApplyingIndex(v uint64, term uint64)
+
 	// UnsafeSave must be called holding the lock on the tx.
 	// It saves consistentIndex to the underlying stable storage.
 	UnsafeSave(tx backend.BatchTx)
@ -61,6 +65,12 @@ type consistentIndex struct {
 	// The value is being persisted in the backend since v3.5.
 	term uint64

+	// applyingIndex and applyingTerm are just temporary cache of the raftpb.Entry.Index
+	// and raftpb.Entry.Term, and they are not ready to be persisted yet. They will be
+	// saved to consistentIndex and term above in the txPostLockInsideApplyHook.
+	applyingIndex uint64
+	applyingTerm  uint64
+
 	// be is used for initial read consistentIndex
 	be Backend
 	// mutex is protecting be.
@ -80,7 +90,17 @@ func (ci *consistentIndex) ConsistentIndex() uint64 {
 	ci.mutex.Lock()
 	defer ci.mutex.Unlock()

-	v, term := ReadConsistentIndex(ci.be.BatchTx())
+	v, term := ReadConsistentIndex(ci.be.ReadTx())
+	ci.SetConsistentIndex(v, term)
+	return v
+}
+
+func (ci *consistentIndex) UnsafeConsistentIndex() uint64 {
+	if index := atomic.LoadUint64(&ci.consistentIndex); index > 0 {
+		return index
+	}
+
+	v, term := unsafeReadConsistentIndex(ci.be.ReadTx())
 	ci.SetConsistentIndex(v, term)
 	return v
 }
@ -93,7 +113,7 @@ func (ci *consistentIndex) SetConsistentIndex(v uint64, term uint64) {
 func (ci *consistentIndex) UnsafeSave(tx backend.BatchTx) {
 	index := atomic.LoadUint64(&ci.consistentIndex)
 	term := atomic.LoadUint64(&ci.term)
-	UnsafeUpdateConsistentIndex(tx, index, term, true)
+	UnsafeUpdateConsistentIndex(tx, index, term)
 }

 func (ci *consistentIndex) SetBackend(be Backend) {
@ -104,6 +124,15 @@ func (ci *consistentIndex) SetBackend(be Backend) {
 	ci.SetConsistentIndex(0, 0)
 }

+func (ci *consistentIndex) ConsistentApplyingIndex() (uint64, uint64) {
+	return atomic.LoadUint64(&ci.applyingIndex), atomic.LoadUint64(&ci.applyingTerm)
+}
+
+func (ci *consistentIndex) SetConsistentApplyingIndex(v uint64, term uint64) {
+	atomic.StoreUint64(&ci.applyingIndex, v)
+	atomic.StoreUint64(&ci.applyingTerm, term)
+}
+
 func NewFakeConsistentIndex(index uint64) ConsistentIndexer {
 	return &fakeConsistentIndex{index: index}
 }
@ -113,38 +142,50 @@ type fakeConsistentIndex struct {
 	term  uint64
 }

-func (f *fakeConsistentIndex) ConsistentIndex() uint64 { return f.index }
+func (f *fakeConsistentIndex) ConsistentIndex() uint64 {
+	return atomic.LoadUint64(&f.index)
+}
+func (f *fakeConsistentIndex) ConsistentApplyingIndex() (uint64, uint64) {
+	return atomic.LoadUint64(&f.index), atomic.LoadUint64(&f.term)
+}
+func (f *fakeConsistentIndex) UnsafeConsistentIndex() uint64 {
+	return atomic.LoadUint64(&f.index)
+}

 func (f *fakeConsistentIndex) SetConsistentIndex(index uint64, term uint64) {
 	atomic.StoreUint64(&f.index, index)
 	atomic.StoreUint64(&f.term, term)
 }
+func (f *fakeConsistentIndex) SetConsistentApplyingIndex(index uint64, term uint64) {
+	atomic.StoreUint64(&f.index, index)
+	atomic.StoreUint64(&f.term, term)
+}

 func (f *fakeConsistentIndex) UnsafeSave(_ backend.BatchTx) {}
 func (f *fakeConsistentIndex) SetBackend(_ Backend)         {}

 // UnsafeCreateMetaBucket creates the `meta` bucket (if it does not exists yet).
 func UnsafeCreateMetaBucket(tx backend.BatchTx) {
-	tx.UnsafeCreateBucket(MetaBucketName)
+	tx.UnsafeCreateBucket(buckets.Meta)
 }

 // CreateMetaBucket creates the `meta` bucket (if it does not exists yet).
 func CreateMetaBucket(tx backend.BatchTx) {
-	tx.Lock()
+	tx.LockOutsideApply()
 	defer tx.Unlock()
-	tx.UnsafeCreateBucket(MetaBucketName)
+	tx.UnsafeCreateBucket(buckets.Meta)
 }

 // unsafeGetConsistentIndex loads consistent index & term from given transaction.
 // returns 0,0 if the data are not found.
 // Term is persisted since v3.5.
 func unsafeReadConsistentIndex(tx backend.ReadTx) (uint64, uint64) {
-	_, vs := tx.UnsafeRange(MetaBucketName, ConsistentIndexKeyName, nil, 0)
+	_, vs := tx.UnsafeRange(buckets.Meta, buckets.MetaConsistentIndexKeyName, nil, 0)
 	if len(vs) == 0 {
 		return 0, 0
 	}
 	v := binary.BigEndian.Uint64(vs[0])
-	_, ts := tx.UnsafeRange(MetaBucketName, TermKeyName, nil, 0)
+	_, ts := tx.UnsafeRange(buckets.Meta, buckets.MetaTermKeyName, nil, 0)
 	if len(ts) == 0 {
 		return v, 0
 	}
@ -160,36 +201,26 @@ func ReadConsistentIndex(tx backend.ReadTx) (uint64, uint64) {
 	return unsafeReadConsistentIndex(tx)
 }

-func UnsafeUpdateConsistentIndex(tx backend.BatchTx, index uint64, term uint64, onlyGrow bool) {
+func UnsafeUpdateConsistentIndex(tx backend.BatchTx, index uint64, term uint64) {
 	if index == 0 {
 		// Never save 0 as it means that we didn't loaded the real index yet.
 		return
 	}

-	if onlyGrow {
-		oldi, oldTerm := unsafeReadConsistentIndex(tx)
-		if term < oldTerm {
-			return
-		}
-		if term == oldTerm && index <= oldi {
-			return
-		}
-	}
-
 	bs1 := make([]byte, 8)
 	binary.BigEndian.PutUint64(bs1, index)
 	// put the index into the underlying backend
 	// tx has been locked in TxnBegin, so there is no need to lock it again
-	tx.UnsafePut(MetaBucketName, ConsistentIndexKeyName, bs1)
+	tx.UnsafePut(buckets.Meta, buckets.MetaConsistentIndexKeyName, bs1)
 	if term > 0 {
 		bs2 := make([]byte, 8)
 		binary.BigEndian.PutUint64(bs2, term)
-		tx.UnsafePut(MetaBucketName, TermKeyName, bs2)
+		tx.UnsafePut(buckets.Meta, buckets.MetaTermKeyName, bs2)
 	}
 }

-func UpdateConsistentIndex(tx backend.BatchTx, index uint64, term uint64, onlyGrow bool) {
-	tx.Lock()
+func UpdateConsistentIndex(tx backend.BatchTx, index uint64, term uint64) {
+	tx.LockOutsideApply()
 	defer tx.Unlock()
-	UnsafeUpdateConsistentIndex(tx, index, term, onlyGrow)
+	UnsafeUpdateConsistentIndex(tx, index, term)
 }
--- a/server/etcdserver/cindex/cindex_test.go
+++ b/server/etcdserver/cindex/cindex_test.go
@ -63,6 +63,58 @@ func TestConsistentIndex(t *testing.T) {
 	assert.Equal(t, r, index)
 }

+func TestConsistentIndexDecrease(t *testing.T) {
+	initIndex := uint64(100)
+	initTerm := uint64(10)
+
+	tcs := []struct {
+		name  string
+		index uint64
+		term  uint64
+	}{
+		{
+			name:  "Decrease term",
+			index: initIndex + 1,
+			term:  initTerm - 1,
+		},
+		{
+			name:  "Decrease CI",
+			index: initIndex - 1,
+			term:  initTerm + 1,
+		},
+		{
+			name:  "Decrease CI and term",
+			index: initIndex - 1,
+			term:  initTerm - 1,
+		},
+	}
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			be, tmpPath := betesting.NewTmpBackend(t, time.Microsecond, 10)
+			tx := be.BatchTx()
+			tx.Lock()
+			UnsafeCreateMetaBucket(tx)
+			UnsafeUpdateConsistentIndex(tx, initIndex, initTerm)
+			tx.Unlock()
+			be.ForceCommit()
+			be.Close()
+
+			be = backend.NewDefaultBackend(tmpPath)
+			defer be.Close()
+			ci := NewConsistentIndex(be)
+			ci.SetConsistentIndex(tc.index, tc.term)
+			tx = be.BatchTx()
+			tx.Lock()
+			ci.UnsafeSave(tx)
+			tx.Unlock()
+			assert.Equal(t, tc.index, ci.ConsistentIndex())
+
+			ci = NewConsistentIndex(be)
+			assert.Equal(t, tc.index, ci.ConsistentIndex())
+		})
+	}
+}
+
 func TestFakeConsistentIndex(t *testing.T) {

 	r := rand.Uint64()
--- a/server/etcdserver/errors.go
+++ b/server/etcdserver/errors.go
@ -27,6 +27,7 @@ var (
 	ErrTimeoutDueToLeaderFail        = errors.New("etcdserver: request timed out, possibly due to previous leader failure")
 	ErrTimeoutDueToConnectionLost    = errors.New("etcdserver: request timed out, possibly due to connection lost")
 	ErrTimeoutLeaderTransfer         = errors.New("etcdserver: request timed out, leader transfer took too long")
+	ErrTimeoutWaitAppliedIndex       = errors.New("etcdserver: request timed out, waiting for the applied index took too long")
 	ErrLeaderChanged                 = errors.New("etcdserver: leader changed")
 	ErrNotEnoughStartedMembers       = errors.New("etcdserver: re-configuration failed due to not enough started members")
 	ErrLearnerNotReady               = errors.New("etcdserver: can only promote a learner member which is in sync with leader")
--- a/server/etcdserver/server.go
+++ b/server/etcdserver/server.go
@ -514,6 +514,9 @@ func NewServer(cfg config.ServerConfig) (srv *EtcdServer, err error) {
 			if be, err = recoverSnapshotBackend(cfg, be, *snapshot, beExist, beHooks); err != nil {
 				cfg.Logger.Panic("failed to recover v3 backend from snapshot", zap.Error(err))
 			}
+			// A snapshot db may have already been recovered, and the old db should have
+			// already been closed in this case, so we should set the backend again.
+			ci.SetBackend(be)
 			s1, s2 := be.Size(), be.SizeInUse()
 			cfg.Logger.Info(
 				"recovered v3 backend from snapshot",
@ -592,9 +595,10 @@ func NewServer(cfg config.ServerConfig) (srv *EtcdServer, err error) {

 	// always recover lessor before kv. When we recover the mvcc.KV it will reattach keys to its leases.
 	// If we recover mvcc.KV first, it will attach the keys to the wrong lessor before it recovers.
-	srv.lessor = lease.NewLessor(srv.Logger(), srv.be, lease.LessorConfig{
+	srv.lessor = lease.NewLessor(srv.Logger(), srv.be, srv.cluster, lease.LessorConfig{
 		MinLeaseTTL:                int64(math.Ceil(minTTL.Seconds())),
 		CheckpointInterval:         cfg.LeaseCheckpointInterval,
+		CheckpointPersist:          cfg.LeaseCheckpointPersist,
 		ExpiredLeasesRetryInterval: srv.Cfg.ReqTimeout(),
 	})

@ -657,6 +661,10 @@ func NewServer(cfg config.ServerConfig) (srv *EtcdServer, err error) {
 		})
 	}

+	// Set the hook after EtcdServer finishes the initialization to avoid
+	// the hook being called during the initialization process.
+	srv.be.SetTxPostLockInsideApplyHook(srv.getTxPostLockInsideApplyHook())
+
 	// TODO: move transport initialization near the definition of remote
 	tr := &rafthttp.Transport{
 		Logger:      cfg.Logger,
@ -1239,6 +1247,13 @@ func (s *EtcdServer) applySnapshot(ep *etcdProgress, apply *apply) {
 		lg.Panic("failed to open snapshot backend", zap.Error(err))
 	}

+	// We need to set the backend to consistIndex before recovering the lessor,
+	// because lessor.Recover will commit the boltDB transaction, accordingly it
+	// will get the old consistent_index persisted into the db in OnPreCommitUnsafe.
+	// Eventually the new consistent_index value coming from snapshot is overwritten
+	// by the old value.
+	s.consistIndex.SetBackend(newbe)
+
 	// always recover lessor before kv. When we recover the mvcc.KV it will reattach keys to its leases.
 	// If we recover mvcc.KV first, it will attach the keys to the wrong lessor before it recovers.
 	if s.lessor != nil {
@ -1255,7 +1270,7 @@ func (s *EtcdServer) applySnapshot(ep *etcdProgress, apply *apply) {
 		lg.Panic("failed to restore mvcc store", zap.Error(err))
 	}

-	s.consistIndex.SetBackend(newbe)
+	newbe.SetTxPostLockInsideApplyHook(s.getTxPostLockInsideApplyHook())
 	lg.Info("restored mvcc store", zap.Uint64("consistent-index", s.consistIndex.ConsistentIndex()))

 	// Closing old backend might block until all the txns
@ -2124,7 +2139,7 @@ func (s *EtcdServer) apply(

 			// set the consistent index of current executing entry
 			if e.Index > s.consistIndex.ConsistentIndex() {
-				s.consistIndex.SetConsistentIndex(e.Index, e.Term)
+				s.consistIndex.SetConsistentApplyingIndex(e.Index, e.Term)
 				shouldApplyV3 = membership.ApplyBoth
 			}

@ -2151,10 +2166,18 @@ func (s *EtcdServer) apply(
 // applyEntryNormal apples an EntryNormal type raftpb request to the EtcdServer
 func (s *EtcdServer) applyEntryNormal(e *raftpb.Entry) {
 	shouldApplyV3 := membership.ApplyV2storeOnly
+	applyV3Performed := false
+	defer func() {
+		// The txPostLock callback will not get called in this case,
+		// so we should set the consistent index directly.
+		if s.consistIndex != nil && !applyV3Performed && membership.ApplyBoth == shouldApplyV3 {
+			s.consistIndex.SetConsistentIndex(e.Index, e.Term)
+		}
+	}()
 	index := s.consistIndex.ConsistentIndex()
 	if e.Index > index {
 		// set the consistent index of current executing entry
-		s.consistIndex.SetConsistentIndex(e.Index, e.Term)
+		s.consistIndex.SetConsistentApplyingIndex(e.Index, e.Term)
 		shouldApplyV3 = membership.ApplyBoth
 	}
 	s.lg.Debug("apply entry normal",
@ -2181,14 +2204,14 @@ func (s *EtcdServer) applyEntryNormal(e *raftpb.Entry) {
 		rp := &r
 		pbutil.MustUnmarshal(rp, e.Data)
 		s.lg.Debug("applyEntryNormal", zap.Stringer("V2request", rp))
-		s.w.Trigger(r.ID, s.applyV2Request((*RequestV2)(rp)))
+		s.w.Trigger(r.ID, s.applyV2Request((*RequestV2)(rp), shouldApplyV3))
 		return
 	}
 	s.lg.Debug("applyEntryNormal", zap.Stringer("raftReq", &raftReq))

 	if raftReq.V2 != nil {
 		req := (*RequestV2)(raftReq.V2)
-		s.w.Trigger(req.ID, s.applyV2Request(req))
+		s.w.Trigger(req.ID, s.applyV2Request(req, shouldApplyV3))
 		return
 	}

@ -2203,6 +2226,7 @@ func (s *EtcdServer) applyEntryNormal(e *raftpb.Entry) {
 		if !needResult && raftReq.Txn != nil {
 			removeNeedlessRangeReqs(raftReq.Txn)
 		}
+		applyV3Performed = true
 		ar = s.applyV3.Apply(&raftReq, shouldApplyV3)
 	}

@ -2254,6 +2278,13 @@ func (s *EtcdServer) applyConfChange(cc raftpb.ConfChange, confState *raftpb.Con
 	if err := s.cluster.ValidateConfigurationChange(cc); err != nil {
 		cc.NodeID = raft.None
 		s.r.ApplyConfChange(cc)
+
+		// The txPostLock callback will not get called in this case,
+		// so we should set the consistent index directly.
+		if s.consistIndex != nil && membership.ApplyBoth == shouldApplyV3 {
+			applyingIndex, applyingTerm := s.consistIndex.ConsistentApplyingIndex()
+			s.consistIndex.SetConsistentIndex(applyingIndex, applyingTerm)
+		}
 		return false, err
 	}

@ -2679,6 +2710,15 @@ func (s *EtcdServer) raftStatus() raft.Status {
 	return s.r.Node.Status()
 }

+func (s *EtcdServer) getTxPostLockInsideApplyHook() func() {
+	return func() {
+		applyingIdx, applyingTerm := s.consistIndex.ConsistentApplyingIndex()
+		if applyingIdx > s.consistIndex.UnsafeConsistentIndex() {
+			s.consistIndex.SetConsistentIndex(applyingIdx, applyingTerm)
+		}
+	}
+}
+
 func maybeDefragBackend(cfg config.ServerConfig, be backend.Backend) error {
 	size := be.Size()
 	sizeInUse := be.SizeInUse()
--- a/server/etcdserver/server_test.go
+++ b/server/etcdserver/server_test.go
@ -472,7 +472,7 @@ func TestApplyRequest(t *testing.T) {
 			v2store: st,
 		}
 		srv.applyV2 = &applierV2store{store: srv.v2store, cluster: srv.cluster}
-		resp := srv.applyV2Request((*RequestV2)(&tt.req))
+		resp := srv.applyV2Request((*RequestV2)(&tt.req), membership.ApplyBoth)

 		if !reflect.DeepEqual(resp, tt.wresp) {
 			t.Errorf("#%d: resp = %+v, want %+v", i, resp, tt.wresp)
@ -500,7 +500,7 @@ func TestApplyRequestOnAdminMemberAttributes(t *testing.T) {
 		Path:   membership.MemberAttributesStorePath(1),
 		Val:    `{"Name":"abc","ClientURLs":["http://127.0.0.1:2379"]}`,
 	}
-	srv.applyV2Request((*RequestV2)(&req))
+	srv.applyV2Request((*RequestV2)(&req), membership.ApplyBoth)
 	w := membership.Attributes{Name: "abc", ClientURLs: []string{"http://127.0.0.1:2379"}}
 	if g := cl.Member(1).Attributes; !reflect.DeepEqual(g, w) {
 		t.Errorf("attributes = %v, want %v", g, w)
@ -686,9 +686,7 @@ func TestApplyConfigChangeUpdatesConsistIndex(t *testing.T) {

 	_, appliedi, _ := srv.apply(ents, &raftpb.ConfState{})
 	consistIndex := srv.consistIndex.ConsistentIndex()
-	if consistIndex != appliedi {
-		t.Fatalf("consistIndex = %v, want %v", consistIndex, appliedi)
-	}
+	assert.Equal(t, uint64(2), appliedi)

 	t.Run("verify-backend", func(t *testing.T) {
 		tx := be.BatchTx()
@ -697,9 +695,8 @@ func TestApplyConfigChangeUpdatesConsistIndex(t *testing.T) {
 		srv.beHooks.OnPreCommitUnsafe(tx)
 		assert.Equal(t, raftpb.ConfState{Voters: []uint64{2}}, *membership.UnsafeConfStateFromBackend(lg, tx))
 	})
-	rindex, rterm := cindex.ReadConsistentIndex(be.BatchTx())
+	rindex, _ := cindex.ReadConsistentIndex(be.ReadTx())
 	assert.Equal(t, consistIndex, rindex)
-	assert.Equal(t, uint64(4), rterm)
 }

 func realisticRaftNode(lg *zap.Logger) *raftNode {
@ -2039,3 +2036,59 @@ func (s *sendMsgAppRespTransporter) Send(m []raftpb.Message) {
 	}
 	s.sendC <- send
 }
+
+func TestWaitAppliedIndex(t *testing.T) {
+	cases := []struct {
+		name           string
+		appliedIndex   uint64
+		committedIndex uint64
+		action         func(s *EtcdServer)
+		ExpectedError  error
+	}{
+		{
+			name:           "The applied Id is already equal to the commitId",
+			appliedIndex:   10,
+			committedIndex: 10,
+			action: func(s *EtcdServer) {
+				s.applyWait.Trigger(10)
+			},
+			ExpectedError: nil,
+		},
+		{
+			name:           "The etcd server has already stopped",
+			appliedIndex:   10,
+			committedIndex: 12,
+			action: func(s *EtcdServer) {
+				s.stopping <- struct{}{}
+			},
+			ExpectedError: ErrStopped,
+		},
+		{
+			name:           "Timed out waiting for the applied index",
+			appliedIndex:   10,
+			committedIndex: 12,
+			action:         nil,
+			ExpectedError:  ErrTimeoutWaitAppliedIndex,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			s := &EtcdServer{
+				appliedIndex:   tc.appliedIndex,
+				committedIndex: tc.committedIndex,
+				stopping:       make(chan struct{}, 1),
+				applyWait:      wait.NewTimeList(),
+			}
+
+			if tc.action != nil {
+				go tc.action(s)
+			}
+
+			err := s.waitAppliedIndex()
+
+			if err != tc.ExpectedError {
+				t.Errorf("Unexpected error, want (%v), got (%v)", tc.ExpectedError, err)
+			}
+		})
+	}
+}
--- a/server/etcdserver/util.go
+++ b/server/etcdserver/util.go
@ -104,6 +104,9 @@ func (nc *notifier) notify(err error) {
 }

 func warnOfExpensiveRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, respMsg proto.Message, err error) {
+	if time.Since(now) <= warningApplyDuration {
+		return
+	}
 	var resp string
 	if !isNil(respMsg) {
 		resp = fmt.Sprintf("size:%d", proto.Size(respMsg))
@ -127,6 +130,9 @@ func warnOfFailedRequest(lg *zap.Logger, now time.Time, reqStringer fmt.Stringer
 }

 func warnOfExpensiveReadOnlyTxnRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, r *pb.TxnRequest, txnResponse *pb.TxnResponse, err error) {
+	if time.Since(now) <= warningApplyDuration {
+		return
+	}
 	reqStringer := pb.NewLoggableTxnRequest(r)
 	var resp string
 	if !isNil(txnResponse) {
@ -145,6 +151,9 @@ func warnOfExpensiveReadOnlyTxnRequest(lg *zap.Logger, warningApplyDuration time
 }

 func warnOfExpensiveReadOnlyRangeRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, rangeResponse *pb.RangeResponse, err error) {
+	if time.Since(now) <= warningApplyDuration {
+		return
+	}
 	var resp string
 	if !isNil(rangeResponse) {
 		resp = fmt.Sprintf("range_response_count:%d size:%d", len(rangeResponse.Kvs), rangeResponse.Size())
@ -152,21 +161,18 @@ func warnOfExpensiveReadOnlyRangeRequest(lg *zap.Logger, warningApplyDuration ti
 	warnOfExpensiveGenericRequest(lg, warningApplyDuration, now, reqStringer, "read-only range ", resp, err)
 }

+// callers need make sure time has passed warningApplyDuration
 func warnOfExpensiveGenericRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, prefix string, resp string, err error) {
-	d := time.Since(now)
-
-	if d > warningApplyDuration {
-		lg.Warn(
-			"apply request took too long",
-			zap.Duration("took", d),
-			zap.Duration("expected-duration", warningApplyDuration),
-			zap.String("prefix", prefix),
-			zap.String("request", reqStringer.String()),
-			zap.String("response", resp),
-			zap.Error(err),
-		)
-		slowApplies.Inc()
-	}
+	lg.Warn(
+		"apply request took too long",
+		zap.Duration("took", time.Since(now)),
+		zap.Duration("expected-duration", warningApplyDuration),
+		zap.String("prefix", prefix),
+		zap.String("request", reqStringer.String()),
+		zap.String("response", resp),
+		zap.Error(err),
+	)
+	slowApplies.Inc()
 }

 func isNil(msg proto.Message) bool {
--- a/server/etcdserver/util_bench_test.go
+++ b/server/etcdserver/util_bench_test.go
@ -0,0 +1,50 @@
+// Copyright 2021 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package etcdserver
+
+import (
+	"errors"
+	"go.etcd.io/etcd/raft/v3/raftpb"
+	"testing"
+	"time"
+)
+
+func BenchmarkWarnOfExpensiveRequestNoLog(b *testing.B) {
+	m := &raftpb.Message{
+		Type:    0,
+		To:      0,
+		From:    1,
+		Term:    2,
+		LogTerm: 3,
+		Index:   0,
+		Entries: []raftpb.Entry{
+			{
+				Term:  0,
+				Index: 0,
+				Type:  0,
+				Data:  make([]byte, 1024),
+			},
+		},
+		Commit:     0,
+		Snapshot:   raftpb.Snapshot{},
+		Reject:     false,
+		RejectHint: 0,
+		Context:    nil,
+	}
+	err := errors.New("benchmarking warn of expensive request")
+	for n := 0; n < b.N; n++ {
+		warnOfExpensiveRequest(testLogger, time.Second, time.Now(), nil, m, err)
+	}
+}
--- a/server/etcdserver/v2_server.go
+++ b/server/etcdserver/v2_server.go
@ -19,6 +19,7 @@ import (
 	"time"

 	pb "go.etcd.io/etcd/api/v3/etcdserverpb"
+	"go.etcd.io/etcd/server/v3/etcdserver/api/membership"
 	"go.etcd.io/etcd/server/v3/etcdserver/api/v2store"
 )

@ -52,7 +53,7 @@ func (a *reqV2HandlerStore) Post(ctx context.Context, r *RequestV2) (Response, e
 }

 func (a *reqV2HandlerStore) Put(ctx context.Context, r *RequestV2) (Response, error) {
-	return a.applier.Put(r), nil
+	return a.applier.Put(r, membership.ApplyBoth), nil
 }

 func (a *reqV2HandlerStore) Delete(ctx context.Context, r *RequestV2) (Response, error) {
--- a/server/etcdserver/v3_server.go
+++ b/server/etcdserver/v3_server.go
@ -45,6 +45,10 @@ const (
 	maxGapBetweenApplyAndCommitIndex = 5000
 	traceThreshold                   = 100 * time.Millisecond
 	readIndexRetryTime               = 500 * time.Millisecond
+
+	// The timeout for the node to catch up its applied index, and is used in
+	// lease related operations, such as LeaseRenew and LeaseTimeToLive.
+	applyTimeout = time.Second
 )

 type RaftKV interface {
@ -271,6 +275,18 @@ func (s *EtcdServer) LeaseGrant(ctx context.Context, r *pb.LeaseGrantRequest) (*
 	return resp.(*pb.LeaseGrantResponse), nil
 }

+func (s *EtcdServer) waitAppliedIndex() error {
+	select {
+	case <-s.ApplyWait():
+	case <-s.stopping:
+		return ErrStopped
+	case <-time.After(applyTimeout):
+		return ErrTimeoutWaitAppliedIndex
+	}
+
+	return nil
+}
+
 func (s *EtcdServer) LeaseRevoke(ctx context.Context, r *pb.LeaseRevokeRequest) (*pb.LeaseRevokeResponse, error) {
 	resp, err := s.raftRequestOnce(ctx, pb.InternalRaftRequest{LeaseRevoke: r})
 	if err != nil {
@ -280,26 +296,32 @@ func (s *EtcdServer) LeaseRevoke(ctx context.Context, r *pb.LeaseRevokeRequest)
 }

 func (s *EtcdServer) LeaseRenew(ctx context.Context, id lease.LeaseID) (int64, error) {
-	ttl, err := s.lessor.Renew(id)
-	if err == nil { // already requested to primary lessor(leader)
-		return ttl, nil
-	}
-	if err != lease.ErrNotPrimary {
-		return -1, err
+	if s.isLeader() {
+		if err := s.waitAppliedIndex(); err != nil {
+			return 0, err
+		}
+
+		ttl, err := s.lessor.Renew(id)
+		if err == nil { // already requested to primary lessor(leader)
+			return ttl, nil
+		}
+		if err != lease.ErrNotPrimary {
+			return -1, err
+		}
 	}

 	cctx, cancel := context.WithTimeout(ctx, s.Cfg.ReqTimeout())
 	defer cancel()

 	// renewals don't go through raft; forward to leader manually
-	for cctx.Err() == nil && err != nil {
+	for cctx.Err() == nil {
 		leader, lerr := s.waitLeader(cctx)
 		if lerr != nil {
 			return -1, lerr
 		}
 		for _, url := range leader.PeerURLs {
 			lurl := url + leasehttp.LeasePrefix
-			ttl, err = leasehttp.RenewHTTP(cctx, id, lurl, s.peerRt)
+			ttl, err := leasehttp.RenewHTTP(cctx, id, lurl, s.peerRt)
 			if err == nil || err == lease.ErrLeaseNotFound {
 				return ttl, err
 			}
@ -315,7 +337,10 @@ func (s *EtcdServer) LeaseRenew(ctx context.Context, id lease.LeaseID) (int64, e
 }

 func (s *EtcdServer) LeaseTimeToLive(ctx context.Context, r *pb.LeaseTimeToLiveRequest) (*pb.LeaseTimeToLiveResponse, error) {
-	if s.Leader() == s.ID() {
+	if s.isLeader() {
+		if err := s.waitAppliedIndex(); err != nil {
+			return nil, err
+		}
 		// primary; timetolive directly from leader
 		le := s.lessor.Lookup(lease.LeaseID(r.ID))
 		if le == nil {
--- a/server/go.mod
+++ b/server/go.mod
@ -4,46 +4,44 @@ go 1.16

 require (
 	github.com/coreos/go-semver v0.3.0
-	github.com/coreos/go-systemd/v22 v22.3.1
+	github.com/coreos/go-systemd/v22 v22.3.2
 	github.com/dustin/go-humanize v1.0.0
 	github.com/form3tech-oss/jwt-go v3.2.3+incompatible
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
 	github.com/golang/protobuf v1.5.2
-	github.com/google/btree v1.0.0
+	github.com/google/btree v1.0.1
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0
 	github.com/jonboulle/clockwork v0.2.2
 	github.com/kr/text v0.2.0 // indirect
-	github.com/prometheus/client_golang v1.5.1
+	github.com/prometheus/client_golang v1.11.1
 	github.com/prometheus/client_model v0.2.0
-	github.com/prometheus/common v0.10.0 // indirect
-	github.com/prometheus/procfs v0.2.0 // indirect
 	github.com/sirupsen/logrus v1.7.0 // indirect
 	github.com/soheilhy/cmux v0.1.5
 	github.com/spf13/cobra v1.1.3
 	github.com/stretchr/testify v1.7.0
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802
 	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2
-	go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0
-	go.etcd.io/etcd/api/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/client/v2 v2.305.0-beta.3
-	go.etcd.io/etcd/client/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/pkg/v3 v3.5.0-beta.3
-	go.etcd.io/etcd/raft/v3 v3.5.0-beta.3
+	go.etcd.io/bbolt v1.3.6
+	go.etcd.io/etcd/api/v3 v3.5.3
+	go.etcd.io/etcd/client/pkg/v3 v3.5.3
+	go.etcd.io/etcd/client/v2 v2.305.3
+	go.etcd.io/etcd/client/v3 v3.5.3
+	go.etcd.io/etcd/pkg/v3 v3.5.3
+	go.etcd.io/etcd/raft/v3 v3.5.3
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.20.0
 	go.opentelemetry.io/otel v0.20.0
 	go.opentelemetry.io/otel/exporters/otlp v0.20.0
 	go.opentelemetry.io/otel/sdk v0.20.0
 	go.uber.org/multierr v1.6.0
-	go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19
-	golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0
-	golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb
+	go.uber.org/zap v1.17.0
+	golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838
+	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2
 	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
-	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
-	google.golang.org/grpc v1.37.0
+	google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c
+	google.golang.org/grpc v1.38.0
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 	sigs.k8s.io/yaml v1.2.0
 )
--- a/server/go.sum
+++ b/server/go.sum
@ -20,6 +20,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@ -55,8 +56,8 @@ github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmf
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd/v22 v22.3.1 h1:7OO2CXWMYNDdaAzP51t4lCCZWwpQHmvPbm9sxWjm3So=
-github.com/coreos/go-systemd/v22 v22.3.1/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
@ -84,8 +85,10 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@ -117,13 +120,15 @@ github.com/golang/protobuf v1.5.1/go.mod h1:DopwsBzvsk0Fs44TXzsVbJyPhcCPeIwnvohx
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
+github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@ -170,18 +175,21 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
 github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
+github.com/json-iterator/go v1.1.11 h1:uVUAXhF2To8cbw/3xN3pxj6kk7TYKs98NIrTqPlMWAQ=
+github.com/json-iterator/go v1.1.11/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@ -210,6 +218,7 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
@ -224,8 +233,9 @@ github.com/posener/complete v1.1.1/go.mod h1:em0nMJCgc9GFtwrmVmEMR/ZL6WyhyjMBndr
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.5.1 h1:bdHYieyGlH+6OLEk2YQha8THib30KP0/yD0YH9m6xcA=
-github.com/prometheus/client_golang v1.5.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
+github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
+github.com/prometheus/client_golang v1.11.1 h1:+4eQaD7vAZ6DsfsxB15hbE0odUjGI5ARs9yskGu1v4s=
+github.com/prometheus/client_golang v1.11.1/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -234,15 +244,15 @@ github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6T
 github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
-github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.10.0 h1:RyRA7RzGXQZiW+tGMr7sxa85G1z0yOpM1qq5c8lNawc=
 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
+github.com/prometheus/common v0.26.0 h1:iMAkS2TDoNWnKM+Kopnx/8tnEStIfpYA0ur0xQzzhMQ=
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 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
-github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/procfs v0.2.0 h1:wH4vA7pcjKuZzjF7lM8awk4fnuJO6idemZXoKnULUx4=
-github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
+github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
@ -253,6 +263,7 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
 github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
@ -286,9 +297,10 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0 h1:FPuyGXkE6qPKJ71PyS0sdXuxUvYGXAXxV0XHpx0qjHE=
-go.etcd.io/bbolt v1.3.6-0.20210426205525-9c92be978ae0/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
+go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
+go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opentelemetry.io/contrib v0.20.0 h1:ubFQUn0VCZ0gPwIoJfBJVpeBlyRMxu8Mm/huKWYd9p0=
@ -322,8 +334,8 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
 go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19 h1:040c3dLNhgFQkoojH2AMpHCy4SrvhmxdU72d9GLGGE0=
-go.uber.org/zap v1.16.1-0.20210329175301-c23abee72d19/go.mod h1:aMfIlz3TDBfB0BwTCKFU1XbEmj9zevr5S5LcBr85MXw=
+go.uber.org/zap v1.17.0 h1:MTjgFu6ZLKvY6Pvaqk97GlxNBuMpV4Hy/3P6tRGlI2U=
+go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@ -331,8 +343,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0 h1:hb9wdF1z5waM+dSIICn1l0DkLVDT3hqhhQsDNUmHPRE=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838 h1:71vQrMauZZhcTVK6KdYM+rklehEEwb3E+ZhaE5jrPrE=
+golang.org/x/crypto v0.0.0-20220131195533-30dcbda58838/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@ -346,14 +358,17 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
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 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -370,10 +385,13 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb h1:eBmm0M9fYhWpKZLjQUUKka/LtIxf46G4fxeEz5KJr9U=
 golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@ -386,6 +404,8 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@ -402,17 +422,28 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiTs/Igowgfkj25AcZrtiE=
@ -438,9 +469,11 @@ golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20210106214847-113979e3529a h1:CB3a9Nez8M13wwlr/E2YtwoU+qYHKfC+JrDa45RXXoQ=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.2 h1:kRBLX7v7Af8W7Gdbbc908OJcdgtK8bOz9Uaj8/F1ACA=
+golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -467,8 +500,9 @@ google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBr
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200423170343-7949de9c1215/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c h1:wtujag7C+4D6KMoulW9YauvK2lgdvCMS260jsqqBXr0=
+google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c/go.mod h1:UODoCrxHCcBojKKwX1terBiRUaqAsFqJiF615XL43r0=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@ -478,8 +512,9 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
 google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@ -509,10 +544,12 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/Show More
+++ b/Show More