xiaoyuyao commented on pull request #672:
URL: https://github.com/apache/hadoop-ozone/pull/672#issuecomment-628797855


   I also hit this intermittently even after HDDS-3154.
   
   ```[ERROR] 
test2WayCommitForRetryfailure(org.apache.hadoop.ozone.client.rpc.Test2WayCommitInRatis)
  Time elapsed: 88.447 s  <<< ERROR!
   java.util.concurrent.ExecutionException: 
   org.apache.ratis.protocol.RaftRetryFailureException: Failed 
RaftClientRequest:client-1578FC0265DA->d0082a59-cec4-4d0d-b5ec-17bb4baf1ccb@group-8EE1479002D7,
 cid=9, seq=3*, RW, cmdType: CloseContainer
   traceID: ""
   containerID: 1
   datanodeUuid: "1c9bc0ef-9cc5-4deb-86e3-073d94f38b24"
   closeContainer {
   }
   , data.size=0 for 15 attempts with RetryLimited(maxAttempts=15, 
sleepTime=1000ms)
        at 
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
        at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
        at 
org.apache.hadoop.ozone.client.rpc.Test2WayCommitInRatis.test2WayCommitForRetryfailure(Test2WayCommitInRatis.java:178)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
        at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
        at 
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
   Caused by: org.apache.ratis.protocol.RaftRetryFailureException: Failed 
RaftClientRequest:client-1578FC0265DA->d0082a59-cec4-4d0d-b5ec-17bb4baf1ccb@group-8EE1479002D7,
 cid=9, seq=3*, RW, cmdType: CloseContainer
   traceID: ""
   containerID: 1
   datanodeUuid: "1c9bc0ef-9cc5-4deb-86e3-073d94f38b24"
   closeContainer {
   }
   , data.size=0 for 15 attempts with RetryLimited(maxAttempts=15, 
sleepTime=1000ms)
        at 
org.apache.ratis.client.impl.RaftClientImpl.noMoreRetries(RaftClientImpl.java:330)
        at 
org.apache.ratis.client.impl.OrderedAsync.handleAsyncRetryFailure(OrderedAsync.java:151)
        at 
org.apache.ratis.client.impl.OrderedAsync.lambda$sendRequest$10(OrderedAsync.java:250)
        at 
java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884)
        at 
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866)
        at 
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
        at 
java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
        at 
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$timeoutCheck$5(GrpcClientProtocolClient.java:337)
        at java.util.Optional.ifPresent(Optional.java:159)
        at 
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.handleReplyFuture(GrpcClientProtocolClient.java:342)
        at 
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.timeoutCheck(GrpcClientProtocolClient.java:337)
        at 
org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.lambda$onNext$3(GrpcClientProtocolClient.java:330)
        at 
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$0(TimeoutScheduler.java:141)
        at 
org.apache.ratis.util.TimeoutScheduler.lambda$onTimeout$1(TimeoutScheduler.java:155)
        at org.apache.ratis.util.LogUtils.runAndLog(LogUtils.java:38)
        at org.apache.ratis.util.LogUtils$1.run(LogUtils.java:79)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   Caused by: org.apache.ratis.protocol.TimeoutIOException: Request #9 timeout 
3s
        ... 16 more
   
   ```


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