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  1. Hadoop HDFS
  2. HDFS-4338

TestNameNodeMetrics#testCorruptBlock is flaky

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.0-alpha1
    • 3.0.0-alpha1
    • namenode
    • None
    • Reviewed

    Description

      Ran some background cpuburn threads, got this stack trace:

      Running org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics
      Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 15.287 sec <<< FAILURE!
      testCorruptBlock(org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics)  Time elapsed: 14922 sec  <<< FAILURE!
      java.lang.AssertionError: Bad value for metric ScheduledReplicationBlocks expected:<1> but was:<0>
      	at org.junit.Assert.fail(Assert.java:91)
      	at org.junit.Assert.failNotEquals(Assert.java:645)
      	at org.junit.Assert.assertEquals(Assert.java:126)
      	at org.junit.Assert.assertEquals(Assert.java:470)
      	at org.apache.hadoop.test.MetricsAsserts.assertGauge(MetricsAsserts.java:190)
      	at org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics.testCorruptBlock(TestNameNodeMetrics.java:229)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      	at java.lang.reflect.Method.invoke(Method.java:597)
      	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
      	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
      	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
      	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
      	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
      	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
      	at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
      	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
      	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
      	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
      	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
      	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
      	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
      	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
      	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
      	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:242)
      	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:137)
      	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      	at java.lang.reflect.Method.invoke(Method.java:597)
      	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
      	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
      	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
      	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
      	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
      
      
      Results :
      
      Failed tests:   testCorruptBlock(org.apache.hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics): Bad value for metric ScheduledReplicationBlocks expected:<1> but was:<0>
      
      Tests run: 1, Failures: 1, Errors: 0, Skipped: 0
      

      Attachments

        1. hdfs-4338.patch
          2 kB
          Andrew Wang
        2. corruptblock.out
          61 kB
          Andrew Wang
        3. corruptblock
          10 kB
          Andrew Wang

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            andrew.wang Andrew Wang
            andrew.wang Andrew Wang
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              Created:
              Updated:
              Resolved:

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