[ 
https://issues.apache.org/jira/browse/HDDS-1052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16760979#comment-16760979
 ] 

Nanda kumar commented on HDDS-1052:
-----------------------------------

{{TestOzoneRpcClientAbstract#testListPartsWithPartMarkerGreaterThanPartCount}} 
exception trace
{code}
[ERROR] 
testListPartsWithPartMarkerGreaterThanPartCount(org.apache.hadoop.ozone.client.rpc.TestSecureOzoneRpcClient)
  Time elapsed: 0.023 s  <<< ERROR!
java.io.IOException: Unexpected Storage Container Exception: 
java.util.concurrent.ExecutionException: 
org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io 
exception
        at 
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.writeChunkToContainer(BlockOutputStream.java:622)
        at 
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.writeChunk(BlockOutputStream.java:464)
        at 
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.write(BlockOutputStream.java:212)
        at 
org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry.write(BlockOutputStreamEntry.java:123)
        at 
org.apache.hadoop.ozone.client.io.KeyOutputStream.handleWrite(KeyOutputStream.java:297)
        at 
org.apache.hadoop.ozone.client.io.KeyOutputStream.write(KeyOutputStream.java:258)
        at 
org.apache.hadoop.ozone.client.io.OzoneOutputStream.write(OzoneOutputStream.java:49)
        at 
org.apache.hadoop.ozone.client.rpc.TestOzoneRpcClientAbstract.uploadPart(TestOzoneRpcClientAbstract.java:2048)
        at 
org.apache.hadoop.ozone.client.rpc.TestOzoneRpcClientAbstract.testListPartsWithPartMarkerGreaterThanPartCount(TestOzoneRpcClientAbstract.java:1932)
        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$1.runReflectiveCall(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:168)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        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$2.evaluate(ParentRunner.java:229)
        at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
        at 
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
        at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
        at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
        at 
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
        at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
Caused by: java.util.concurrent.ExecutionException: 
org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: UNAVAILABLE: io 
exception
        at 
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
        at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
        at 
org.apache.hadoop.hdds.scm.XceiverClientGrpc.sendCommandAsync(XceiverClientGrpc.java:270)
        at 
org.apache.hadoop.hdds.scm.storage.ContainerProtocolCalls.writeChunkAsync(ContainerProtocolCalls.java:324)
        at 
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.writeChunkToContainer(BlockOutputStream.java:602)
        ... 37 more
Caused by: org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException: 
UNAVAILABLE: io exception
        at 
org.apache.ratis.thirdparty.io.grpc.Status.asRuntimeException(Status.java:526)
        at 
org.apache.ratis.thirdparty.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:434)
        at 
org.apache.ratis.thirdparty.io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
        at 
org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
        at 
org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:678)
        at 
org.apache.ratis.thirdparty.io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
        at 
org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
        at 
org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:397)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:459)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:546)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:467)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:584)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at 
org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: 
org.apache.ratis.thirdparty.io.netty.channel.AbstractChannel$AnnotatedConnectException:
 Connection refused: /192.168.0.5:53100
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at 
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
        at 
org.apache.ratis.thirdparty.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)
        at 
org.apache.ratis.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:340)
        at 
org.apache.ratis.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:632)
        at 
org.apache.ratis.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:579)
        at 
org.apache.ratis.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:496)
        at 
org.apache.ratis.thirdparty.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458)
        at 
org.apache.ratis.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897)
        at 
org.apache.ratis.thirdparty.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        ... 1 more
Caused by: java.net.ConnectException: Connection refused
        ... 11 more
{code}

> TestOzoneRpcClient is flaky
> ---------------------------
>
>                 Key: HDDS-1052
>                 URL: https://issues.apache.org/jira/browse/HDDS-1052
>             Project: Hadoop Distributed Data Store
>          Issue Type: Test
>          Components: test
>    Affects Versions: 0.3.0
>            Reporter: Nanda kumar
>            Priority: Major
>
> {{TestOzoneRpcClient}} is flaky. The following test cases fail randomly.
> {code}
> [ERROR] Errors:
> [ERROR]   
> TestOzoneRpcClient>TestOzoneRpcClientAbstract.testListPartsWithPartMarkerGreaterThanPartCount:1932->TestOzoneRpcClientAbstract.uploadPart:2048
>  » IO
> [ERROR]   
> TestOzoneRpcClient>TestOzoneRpcClientAbstract.testMultipartUploadWithPartsMisMatchWithIncorrectPartName:1657->TestOzoneRpcClientAbstract.uploadPart:2048
>  » IO
> [ERROR]   TestOzoneRpcClient>TestOzoneRpcClientAbstract.testPutKey:558 » IO 
> Unexpected S...
> [ERROR]   
> TestOzoneRpcClient>TestOzoneRpcClientAbstract.testReadKeyWithCorruptedData:884
>  » IO
> [ERROR]   
> TestOzoneRpcClient>TestOzoneRpcClientAbstract.testUploadPartWithNoOverride:1391
>  » IO
> {code}



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