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https://issues.apache.org/jira/browse/MAPREDUCE-5688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13888045#comment-13888045
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Jonathan Eagles commented on MAPREDUCE-5688:
--------------------------------------------
Mit, thanks for the patch. Couple of minor nits.
* Re-title this jira since this is not a test problem according to the patch,
but a race condition in the MRAppMaster that is exposed most frequently via
this test.
* Add your analysis to the jira so that the actual problem is documented and
captured for future use.
* Please determine if the java7 label is still accurate based on your analysis
> TestStagingCleanup fails intermittently with JDK7
> -------------------------------------------------
>
> Key: MAPREDUCE-5688
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5688
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.3.0
> Reporter: Mit Desai
> Assignee: Mit Desai
> Labels: java7
> Attachments: MAPREDUCE-5688.patch
>
>
> Due to random ordering ordering in JDK7, the test
> TestStagingCleanup#testDeletionofStagingOnKillLastTry is failing
> {noformat}
> Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 4.231 sec <<<
> FAILURE!
> test(org.apache.hadoop.mapreduce.v2.app.TestStagingCleanup) Time elapsed:
> 3882 sec <<< ERROR!
> java.lang.NullPointerException
> at
> org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.serviceStop(JobHistoryEventHandler.java:349)
> at
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
> at
> org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
> at
> org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)
> at
> org.apache.hadoop.service.CompositeService.stop(CompositeService.java:159)
> at
> org.apache.hadoop.service.CompositeService.serviceStop(CompositeService.java:132)
> at
> org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$MRAppMasterShutdownHook.run(MRAppMaster.java:1399)
> at
> org.apache.hadoop.mapreduce.v2.app.TestStagingCleanup.testDeletionofStagingOnKillLastTry(TestStagingCleanup.java:239)
> at
> org.apache.hadoop.mapreduce.v2.app.TestStagingCleanup.test(TestStagingCleanup.java:82)
> 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:606)
> at junit.framework.TestCase.runTest(TestCase.java:168)
> at junit.framework.TestCase.runBare(TestCase.java:134)
> at junit.framework.TestResult$1.protect(TestResult.java:110)
> at junit.framework.TestResult.runProtected(TestResult.java:128)
> at junit.framework.TestResult.run(TestResult.java:113)
> at junit.framework.TestCase.run(TestCase.java:124)
> at junit.framework.TestSuite.runTest(TestSuite.java:243)
> at junit.framework.TestSuite.run(TestSuite.java:238)
> at
> org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
> at
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:242)
> at
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:137)
> at
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
> at
> org.apache.maven.surefire.booter.ProviderFactory$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)
> {noformat}
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