Ahmed Hussein created HDFS-16072:
------------------------------------

             Summary: TestBlockRecovery fails consistently on Branch-2.10
                 Key: HDFS-16072
                 URL: https://issues.apache.org/jira/browse/HDFS-16072
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode, test
    Affects Versions: 2.10.1
            Reporter: Ahmed Hussein


{{TestBlockRecovery}} fails on branch-2.10 consistently.
I found that the failures were reported in the Qbt-Reports since March 2021 to 
say the least.


{code:bash}
[ERROR] Tests run: 20, Failures: 0, Errors: 4, Skipped: 0, Time elapsed: 21.422 
s <<< FAILURE! - in org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery
[ERROR] 
testRaceBetweenReplicaRecoveryAndFinalizeBlock(org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery)
  Time elapsed: 2.814 s  <<< ERROR!
java.io.IOException: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufHelper.getRemoteException(ProtobufHelper.java:47)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:656)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
        at com.sun.proxy.$Proxy28.getDatanodeReport(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.datanodeReport(DFSClient.java:2132)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2699)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2743)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1723)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:905)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:517)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:476)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRaceBetweenReplicaRecoveryAndFinalizeBlock(TestBlockRecovery.java:694)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:288)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:282)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:244)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
        at com.sun.proxy.$Proxy27.getDatanodeReport(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:653)
        ... 30 more
Caused by: java.lang.IllegalThreadStateException
        at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:864)
        at java.lang.Thread.init(Thread.java:405)
        at java.lang.Thread.init(Thread.java:349)
        at java.lang.Thread.<init>(Thread.java:678)
        at 
java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:574)
        at 
com.google.common.util.concurrent.ThreadFactoryBuilder$1.newThread(ThreadFactoryBuilder.java:159)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:617)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:931)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1381)
        at 
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at 
org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1147)
        at org.apache.hadoop.ipc.Client.call(Client.java:1456)
        at org.apache.hadoop.ipc.Client.call(Client.java:1403)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
        ... 33 more

[ERROR] 
testRecoveryTimeout(org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery)  
Time elapsed: 1.529 s  <<< ERROR!
java.io.IOException: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufHelper.getRemoteException(ProtobufHelper.java:47)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:656)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
        at com.sun.proxy.$Proxy28.getDatanodeReport(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.datanodeReport(DFSClient.java:2132)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2699)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2743)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1723)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:905)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:517)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:476)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRecoveryWithDatanodeDelayed(TestBlockRecovery.java:1055)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRecoveryTimeout(TestBlockRecovery.java:1045)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:288)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:282)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:244)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
        at com.sun.proxy.$Proxy27.getDatanodeReport(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:653)
        ... 31 more
Caused by: java.lang.IllegalThreadStateException
        at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:864)
        at java.lang.Thread.init(Thread.java:405)
        at java.lang.Thread.init(Thread.java:349)
        at java.lang.Thread.<init>(Thread.java:678)
        at 
java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:574)
        at 
com.google.common.util.concurrent.ThreadFactoryBuilder$1.newThread(ThreadFactoryBuilder.java:159)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:617)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:931)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1381)
        at 
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at 
org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1147)
        at org.apache.hadoop.ipc.Client.call(Client.java:1456)
        at org.apache.hadoop.ipc.Client.call(Client.java:1403)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
        ... 34 more

[ERROR] 
testRecoverySlowerThanHeartbeat(org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery)
  Time elapsed: 1.352 s  <<< ERROR!
java.io.IOException: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufHelper.getRemoteException(ProtobufHelper.java:47)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:656)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
        at com.sun.proxy.$Proxy28.getDatanodeReport(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.datanodeReport(DFSClient.java:2132)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2699)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2743)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1723)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:905)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:517)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:476)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRecoveryWithDatanodeDelayed(TestBlockRecovery.java:1055)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRecoverySlowerThanHeartbeat(TestBlockRecovery.java:1006)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:288)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:282)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:244)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
        at com.sun.proxy.$Proxy27.getDatanodeReport(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:653)
        ... 31 more
Caused by: java.lang.IllegalThreadStateException
        at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:864)
        at java.lang.Thread.init(Thread.java:405)
        at java.lang.Thread.init(Thread.java:349)
        at java.lang.Thread.<init>(Thread.java:678)
        at 
java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:574)
        at 
com.google.common.util.concurrent.ThreadFactoryBuilder$1.newThread(ThreadFactoryBuilder.java:159)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:617)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:931)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1381)
        at 
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at 
org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1147)
        at org.apache.hadoop.ipc.Client.call(Client.java:1456)
        at org.apache.hadoop.ipc.Client.call(Client.java:1403)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
        ... 34 more

[ERROR] 
testRecoveryWillIgnoreMinReplication(org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery)
  Time elapsed: 3.062 s  <<< ERROR!
java.io.IOException: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufHelper.getRemoteException(ProtobufHelper.java:47)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:656)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
        at 
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
        at com.sun.proxy.$Proxy28.getDatanodeReport(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.datanodeReport(DFSClient.java:2132)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2699)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.waitActive(MiniDFSCluster.java:2743)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1723)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:905)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:517)
        at 
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:476)
        at 
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRecoveryWillIgnoreMinReplication(TestBlockRecovery.java:1121)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:607)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:288)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:282)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.lang.Thread.run(Thread.java:748)
Caused by: com.google.protobuf.ServiceException: 
java.lang.IllegalThreadStateException
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:244)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
        at com.sun.proxy.$Proxy27.getDatanodeReport(Unknown Source)
        at 
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDatanodeReport(ClientNamenodeProtocolTranslatorPB.java:653)
        ... 30 more
Caused by: java.lang.IllegalThreadStateException
        at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:864)
        at java.lang.Thread.init(Thread.java:405)
        at java.lang.Thread.init(Thread.java:349)
        at java.lang.Thread.<init>(Thread.java:678)
        at 
java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:574)
        at 
com.google.common.util.concurrent.ThreadFactoryBuilder$1.newThread(ThreadFactoryBuilder.java:159)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:617)
        at 
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:931)
        at 
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1381)
        at 
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at 
org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1147)
        at org.apache.hadoop.ipc.Client.call(Client.java:1456)
        at org.apache.hadoop.ipc.Client.call(Client.java:1403)
        at 
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
        ... 33 more
{code}




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