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From "Ewan Higgs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-13579) Out of memory when running TestDFSStripedOutputStreamWithFailure testCloseWithExceptionsInStreamer
Date Thu, 17 May 2018 08:32:00 GMT
Ewan Higgs created HDFS-13579:
---------------------------------

             Summary: Out of memory when running TestDFSStripedOutputStreamWithFailure testCloseWithExceptionsInStreamer
                 Key: HDFS-13579
                 URL: https://issues.apache.org/jira/browse/HDFS-13579
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Ewan Higgs


When running  TestDFSStripedOutputStreamWithFailure testCloseWithExceptionsInStreamer we
often get OOM errors. It's not every time, but it occurs frequently. We have reproduced this
on a few different machines. This seems to have been introduced in f83716b7f2e5b63e4c2302c374982755233d4dd6
by HDFS-13251.

Output from the test:
{code:java}
java.lang.OutOfMemoryError: unable to create new native thread

    at java.lang.Thread.start0(Native Method)
    at java.lang.Thread.start(Thread.java:714)
    at io.netty.util.concurrent.SingleThreadEventExecutor.shutdownGracefully(SingleThreadEventExecutor.java:578)
    at io.netty.util.concurrent.MultithreadEventExecutorGroup.shutdownGracefully(MultithreadEventExecutorGroup.java:146)
    at io.netty.util.concurrent.AbstractEventExecutorGroup.shutdownGracefully(AbstractEventExecutorGroup.java:69)
    at org.apache.hadoop.hdfs.server.datanode.web.DatanodeHttpServer.close(DatanodeHttpServer.java:270)
    at org.apache.hadoop.hdfs.server.datanode.DataNode.shutdown(DataNode.java:2023)
    at org.apache.hadoop.hdfs.MiniDFSCluster.shutdownDataNode(MiniDFSCluster.java:2023)
    at org.apache.hadoop.hdfs.MiniDFSCluster.shutdownDataNodes(MiniDFSCluster.java:2013)
    at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1992)
    at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1966)
    at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1959)
    at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailureBase.tearDown(TestDFSStripedOutputStreamWithFailureBase.java:222)
    at org.apache.hadoop.hdfs.TestDFSStripedOutputStreamWithFailure.testCloseWithExceptionsInStreamer(TestDFSStripedOutputStreamWithFailure.java:266)
    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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    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$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:54)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70){code}



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