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etcdserver: detect leader change on reads

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Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
This commit is contained in:
Gyuho Lee
2019-08-14 01:33:31 -07:00
parent 9561f6b3b6
commit e5c2dff346
5 changed files with 34 additions and 1 deletions
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2
etcdserver/api/v3rpc/rpctypes/error.go
View File

@@ -61,6 +61,7 @@ var (
ErrGRPCNoLeader = status.New(codes.Unavailable, "etcdserver: no leader").Err()
ErrGRPCNotLeader = status.New(codes.FailedPrecondition, "etcdserver: not leader").Err()
ErrGRPCLeaderChanged = status.New(codes.Unavailable, "etcdserver: leader changed").Err()
ErrGRPCNotCapable = status.New(codes.Unavailable, "etcdserver: not capable").Err()
ErrGRPCStopped = status.New(codes.Unavailable, "etcdserver: server stopped").Err()
ErrGRPCTimeout = status.New(codes.Unavailable, "etcdserver: request timed out").Err()
@@ -163,6 +164,7 @@ var (
ErrNoLeader = Error(ErrGRPCNoLeader)
ErrNotLeader = Error(ErrGRPCNotLeader)
ErrLeaderChanged = Error(ErrGRPCLeaderChanged)
ErrNotCapable = Error(ErrGRPCNotCapable)
ErrStopped = Error(ErrGRPCStopped)
ErrTimeout = Error(ErrGRPCTimeout)

1
etcdserver/api/v3rpc/util.go
View File

@@ -44,6 +44,7 @@ var toGRPCErrorMap = map[error]error{
etcdserver.ErrNoLeader: rpctypes.ErrGRPCNoLeader,
etcdserver.ErrNotLeader: rpctypes.ErrGRPCNotLeader,
etcdserver.ErrLeaderChanged: rpctypes.ErrGRPCLeaderChanged,
etcdserver.ErrStopped: rpctypes.ErrGRPCStopped,
etcdserver.ErrTimeout: rpctypes.ErrGRPCTimeout,
etcdserver.ErrTimeoutDueToLeaderFail: rpctypes.ErrGRPCTimeoutDueToLeaderFail,