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support linearizable renew lease

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When etcdserver receives a LeaseRenew request, it may be still in
progress of processing the LeaseGrantRequest on exact the same
leaseID. Accordingly it may return a TTL=0 to client due to the
leaseID not found error. So the leader should wait for the appliedID
to be available before processing client requests.
This commit is contained in:
ahrtr
2022-04-12 14:01:14 +08:00
parent b9cbff151c
commit bc5307de95
7 changed files with 128 additions and 18 deletions
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2
api/v3rpc/rpctypes/error.go
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@@ -75,6 +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()
@@ -208,6 +209,7 @@ var (
ErrTimeout = Error(ErrGRPCTimeout)
ErrTimeoutDueToLeaderFail = Error(ErrGRPCTimeoutDueToLeaderFail)
ErrTimeoutDueToConnectionLost = Error(ErrGRPCTimeoutDueToConnectionLost)
ErrTimeoutWaitAppliedIndex = Error(ErrGRPCTimeoutWaitAppliedIndex)
ErrUnhealthy = Error(ErrGRPCUnhealthy)
ErrCorrupt = Error(ErrGRPCCorrupt)
ErrBadLeaderTransferee = Error(ErrGRPCBadLeaderTransferee)