Commit Graph

72 Commits

Author SHA1 Message Date
692b3c4cd7 server: Remove most of V2 API 2022-01-25 15:24:13 +01:00
ee5ef42c5c server: --enable-v2 and --enable-v2v3 is decomissioned 2022-01-14 13:19:30 +01:00
7d10899d7f server: Require either cluster version v3.6 or --experimental-enable-lease-checkpoint-persist to persist lease remainingTTL
To avoid inconsistant behavior during cluster upgrade we are feature
gating persistance behind cluster version. This should ensure that
all cluster members are upgraded to v3.6 before changing behavior.

To allow backporting this fix to v3.5 we are also introducing flag
--experimental-enable-lease-checkpoint-persist that will allow for
smooth upgrade in v3.5 clusters with this feature enabled.
2021-12-02 12:26:47 +01:00
e47c3c22d2 server: Move downgrade API logic into version package 2021-10-08 12:01:51 +02:00
1e5e57f268 server: Move downgrade detection code to version package 2021-10-08 10:41:37 +02:00
39f92a32ca server: Move member dir creation up and introduce Close method to bootstrap structs 2021-09-20 12:21:36 +02:00
4884e7d8cf server: Move wal bootstrap from cluster to storage 2021-09-20 12:21:35 +02:00
049e2d6ec0 server: Move raft up the bootstrap hierarchy 2021-09-20 12:20:19 +02:00
8b0d8ea2af server: Move cluster up the bootstrap hierarchy 2021-09-20 12:19:09 +02:00
7c8f7166e7 server: Move bootstraping backend from snapshot to bootstrapBackend 2021-09-20 12:17:33 +02:00
c97ab8f5e0 server: Move cluster up the bootstrap hierarchy 2021-09-20 12:07:41 +02:00
6a4ea70aef server: Move clusterID and nodeID up the bootstrap hierarchy 2021-09-20 12:06:18 +02:00
db06a4ab28 server: Move wal bootstrap up the hierarchy 2021-09-20 12:04:44 +02:00
aa0c050003 etcdserver: Add more hierarchy bootstap introducing a separate storage bootstrap step 2021-09-20 12:01:45 +02:00
66d05e5496 Try updating storage version immidietly after cluster version is set 2021-09-10 10:16:48 +02:00
ff3729c4d5 server: Implement storage schema migration to follow cluster version change and panic if unknown storage version is found
Storage version should follow cluster version. During upgrades this
should be immidiate as storage version can be always upgraded as storage
is backward compatible. During downgrades it will be delayed and will
require time for incompatible changes to be snapshotted.

As storage version change can happen long after cluster is running, we
need to add a step during bootstrap to validate if loaded data can be
understood by migrator.
2021-09-10 10:16:48 +02:00
9d81dde082 server: Extract notifier struct 2021-09-10 10:16:48 +02:00
87f1dc7e40 Fix a few typos 2021-09-03 16:09:09 -04:00
83a325ac46 server: Move all functions needed for storage bootstrap to storage package
This is prerequestite to move storage bootstrap, splitted to separate PR
to make it easier to review.
2021-08-03 13:09:15 +02:00
a0554a6bd3 etcdserver: Create AuthBackend interface 2021-07-20 18:09:53 +02:00
6cd3633543 etcdserver: Rename membershipStore to membershipBackend 2021-07-20 17:56:52 +02:00
2f31cc3fbc etcdserver: Create AlarmBackend interface 2021-07-20 17:53:44 +02:00
f6534f1e92 server: Move setting storage version to schema 2021-07-12 15:37:21 +02:00
5b6f4579fb server: Rename buckets to schema 2021-07-12 15:37:21 +02:00
5e40a8b00c server: Create storage package and move mvcc files to it 2021-07-12 15:37:21 +02:00
ef6c276fae etcdserver: Move server bootstraping to one file 2021-07-12 15:37:21 +02:00
9824cc96ed etcdserver: Fix typos in bootstrap 2021-07-08 13:37:19 +02:00
a72d4462fe etcdserver: Create boostrap wal functions 2021-07-07 23:36:35 +02:00
e75dfde4cb etcdserver: Move raft node start to just before newRaftNode 2021-07-07 23:26:37 +02:00
08935247a8 etcdserver: Create raftnode based on boostrapRaft struct 2021-07-07 17:38:56 +02:00
554777bba4 etcdserver: Extract boostrapRaft struct 2021-07-07 17:30:27 +02:00
7d39c3c655 etcdserver: Extract boostrapSnapshotter function 2021-07-07 16:14:33 +02:00
af0439490c etcdserver: Extract cluster boostrap functions 2021-07-07 16:04:52 +02:00
16b2a8b420 etcdserver: Prepare boostrap to split cluster setup 2021-07-07 15:56:43 +02:00
4dd9424d11 etcdserver: Extract boostrapBackend function 2021-07-07 15:46:38 +02:00
120cd5abe2 etcdserver: Extract etcdserver boostrap function 2021-07-07 15:40:54 +02:00
2db193fda1 etcdserver: Fix snapshot always nil 2021-07-07 13:29:45 +02:00
bf3e7033e9 etcdserver: Move Read/Update methods on Meta bucket to one place
There are still some left like compact keys, but they will require more
work to avoid circular dependency.
2021-07-05 13:23:53 +02:00
50507d5f3c etcdserver: Membership uses MembershipStorage interface instead of directly accessing Backend 2021-06-29 16:14:06 +02:00
e2740b4afa server,etcdutl: Preserve etcd version in backend allowing etcdutl to read it from snapshot 2021-06-25 14:06:56 +02:00
823f85dfc9 etcdserver: Move version monitor logic to separate module 2021-06-23 19:27:29 +02:00
184b0e5d49 add sleep interval 2021-05-24 16:22:00 +08:00
0a972a3f05 applyV2 should reapply on backend only once
During review of:  https://github.com/etcd-io/etcd/pull/12988 spotted
that PUT is actially writing to v3-backend.
If we are replaying WAL log, it might happened that backend's
applied_index is > than the WAL's log entry. In such situation we should
skip applying on backend V3.
I think both the methods (setVersion, setMembersAttributes) are in
practice idempotent so its not that 'serious' problem, but for
formal correctness adding the proper checks.
2021-05-18 20:55:05 +02:00
783c5ad2d2 use v2 api to update cluster version 2021-05-17 11:45:54 -07:00
ab586cd463 Persists Term in the (bbolt) Backend.
Additional layer of protection, that allows to validate whether we
start replaying log not only from the proper 'index', but also of the
right 'term'.
2021-05-13 21:29:01 +02:00
865df75714 Save raftpb.ConfState in the backend.
This makes (bbolt) backend a full feature snapshot in term of WAL/raft,
i.e. carries:
  - commit : (applied_index)
  - confState

Benefits:
  - Backend will be a sufficient point in time definition sufficient to
start replaying WAL. We have applied_index & confState in consistent
state.
  - In case of emergency a backend state can be used for recovery
2021-05-13 14:29:36 +02:00
ead81df948 Disallow -v2-deprecation>'not-yet' combined with --enable-v2 2021-05-12 18:09:34 +02:00
efc8505739 etcdserver: Implement running defrag if freeable space will exceed privided threshold 2021-05-11 14:00:29 +02:00
2fb6f0a74b Simplify lease management after cindex update is moved to 'hooks'. 2021-05-04 18:21:23 +02:00
2dbecea5b2 Simplify KVStore interaction with cindex thanks to hooks. 2021-05-04 18:21:23 +02:00