learner support snapshot RPC (#12890)

* learner support snapshot RPC

* CHANGELOG: update for 12890
This commit is contained in:
tangcong
2021-05-05 04:26:33 +08:00
committed by GitHub
parent a3fc535a5a
commit b32bc914ff
2 changed files with 3 additions and 1 deletions

View File

@ -35,6 +35,7 @@ import (
const (
maxNoLeaderCnt = 3
warnUnaryRequestLatency = 300 * time.Millisecond
snapshotMethod = "/etcdserverpb.Maintenance/Snapshot"
)
type streamsMap struct {
@ -214,7 +215,7 @@ func newStreamInterceptor(s *etcdserver.EtcdServer) grpc.StreamServerInterceptor
return rpctypes.ErrGRPCNotCapable
}
if s.IsMemberExist(s.ID()) && s.IsLearner() { // learner does not support stream RPC
if s.IsMemberExist(s.ID()) && s.IsLearner() && info.FullMethod != snapshotMethod { // learner does not support stream RPC except Snapshot
return rpctypes.ErrGPRCNotSupportedForLearner
}