ClientV3: Ordering: Fix the ordering test such it does not fail.

The test depended on very subtle timing semantic and on properties of
'copied' clients.

https://travis-ci.com/github/etcd-io/etcd/jobs/486191449

Examplar failure:
```
{"level":"warn","ts":"2021-02-25T12:34:47.894Z","caller":"v3/retry_interceptor.go:62","msg":"retrying of unary invoker failed","target":"etcd-endpoints://0xc0000d6fc0/#initially=[unix://localhost:86269902489114839060]","attempt":1,"error":"rpc error: code = Unavailable desc = etcdserver: rpc not supported for learner"}
{"level":"warn","ts":"2021-02-25T12:34:48.163Z","caller":"v3/retry_interceptor.go:62","msg":"retrying of unary invoker failed","target":"etcd-endpoints://0xc00035a000/#initially=[unix://localhost:78285857058450835940]","attempt":0,"error":"rpc error: code = FailedPrecondition desc = etcdserver: not leader"}
{"level":"info","ts":"2021-02-25T12:34:48.255Z","caller":"v3/maintenance.go:211","msg":"opened snapshot stream; downloading"}
{"level":"warn","ts":"2021-02-25T12:34:48.255Z","caller":"v3/maintenance.go:221","msg":"failed to receive from snapshot stream; closing","error":"rpc error: code = Canceled desc = context canceled"}
{"level":"info","ts":"2021-02-25T12:34:48.255Z","caller":"v3/maintenance.go:211","msg":"opened snapshot stream; downloading"}
{"level":"info","ts":"2021-02-25T12:34:50.255Z","caller":"v3/maintenance.go:219","msg":"completed snapshot read; closing"}
{"level":"info","ts":"2021-02-25T12:34:51.717Z","caller":"v3/maintenance.go:211","msg":"opened snapshot stream; downloading"}
{"level":"warn","ts":"2021-02-25T12:34:52.017Z","caller":"v3/maintenance.go:221","msg":"failed to receive from snapshot stream; closing","error":"rpc error: code = Canceled desc = context canceled"}
{"level":"info","ts":"2021-02-25T12:34:52.018Z","caller":"v3/maintenance.go:211","msg":"opened snapshot stream; downloading"}
{"level":"warn","ts":"2021-02-25T12:34:53.018Z","caller":"v3/maintenance.go:221","msg":"failed to receive from snapshot stream; closing","error":"rpc error: code = DeadlineExceeded desc = context deadline exceeded"}
--- FAIL: TestEndpointSwitchResolvesViolation (10.12s)
    ordering_util_test.go:81: failed to resolve order violation etcdclient: no cluster members have a revision higher than the previously received revision
```
This commit is contained in:
Piotr Tabor
2021-02-25 17:16:07 +01:00
parent ae36379800
commit 45b1e6b470
3 changed files with 19 additions and 35 deletions

View File

@@ -386,7 +386,7 @@ func mustListenCMux(lg *zap.Logger, tlsinfo *transport.TLSInfo) cmux.CMux {
func newGRPCProxyServer(lg *zap.Logger, client *clientv3.Client) *grpc.Server {
if grpcProxyEnableOrdering {
vf := ordering.NewOrderViolationSwitchEndpointClosure(*client)
vf := ordering.NewOrderViolationSwitchEndpointClosure(client)
client.KV = ordering.NewKV(client.KV, vf)
lg.Info("waiting for linearized read from cluster to recover ordering")
for {