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  1. Hadoop YARN
  2. YARN-10455

TestNMProxy.testNMProxyRPCRetry is not consistent

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 3.1.2, 3.2.2, 3.4.0, 3.3.1, 2.10.2
    • None
    • None

    Description

      The fix in YARN-8844 may fail depending on the configuration of the machine running the test.
      In some cases the address gets resolved and the Unit throws a connection timeout exception instead. In such scenario the JUnit times out the main reason behind the failure is swallowed by the shutdown of the clients.
      To make sure that the JUnit behavior is consistent, a suggested fix is to set the host address to 127.0.0.1:1. The latter will omit the probability of collisions on non-privileged ports.
      Also, it is more correct to catch SocketException directly rather than catching IOException with a check for not SocketException.

       

      The stack trace with such failures:

      [INFO] Running org.apache.hadoop.yarn.server.nodemanager.containermanager.TestNMProxy
      [ERROR] Tests run: 3, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 24.293 s <<< FAILURE! - in org.apache.hadoop.yarn.server.nodemanager.containermanager.TestNMProxy
      [ERROR] testNMProxyRPCRetry(org.apache.hadoop.yarn.server.nodemanager.containermanager.TestNMProxy)  Time elapsed: 20.18 s  <<< ERROR!
      org.junit.runners.model.TestTimedOutException: test timed out after 20000 milliseconds
      	at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method)
      	at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198)
      	at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117)
      	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
      	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
      	at org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:336)
      	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:203)
      	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:586)
      	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:700)
      	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:821)
      	at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:413)
      	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1645)
      	at org.apache.hadoop.ipc.Client.call(Client.java:1461)
      	at org.apache.hadoop.ipc.Client.call(Client.java:1414)
      	at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:234)
      	at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:119)
      	at com.sun.proxy.$Proxy24.startContainers(Unknown Source)
      	at org.apache.hadoop.yarn.api.impl.pb.client.ContainerManagementProtocolPBClientImpl.startContainers(ContainerManagementProtocolPBClientImpl.java:133)
      	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.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:431)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:166)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:158)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:96)
      	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:362)
      	at com.sun.proxy.$Proxy25.startContainers(Unknown Source)
      	at org.apache.hadoop.yarn.server.nodemanager.containermanager.TestNMProxy.testNMProxyRPCRetry(TestNMProxy.java:167)
      	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$1.runReflectiveCall(FrameworkMethod.java:50)
      	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
      	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
      	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
      	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      	at java.lang.Thread.run(Thread.java:748)
      
      [INFO]
      [INFO] Results:
      [INFO]
      [ERROR] Errors:
      [ERROR]   TestNMProxy.testNMProxyRPCRetry:167 » TestTimedOut test timed out after 20000 ...
      

      Attachments

        1. YARN-10455.001.patch
          2 kB
          Ahmed Hussein
        2. YARN-10455-branch-2.10.001.patch
          3 kB
          Ahmed Hussein

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            ahussein Ahmed Hussein
            ahussein Ahmed Hussein
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              Created:
              Updated:
              Resolved:

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