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https://issues.apache.org/jira/browse/MAPREDUCE-6675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Kanter updated MAPREDUCE-6675:
-------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.9.0
Status: Resolved (was: Patch Available)
Thanks Haibo. Committed to trunk and branch-2!
> TestJobImpl.testUnusableNode failed
> ------------------------------------
>
> Key: MAPREDUCE-6675
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6675
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.7.3
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Fix For: 2.9.0
>
> Attachments: mapreduce6675.001.patch
>
>
> TestJobImpl#testUnusableNodeTransition is flaky.
> 2016-02-13 09:16:42 Running
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl
> 2016-02-13 09:16:50 Tests run: 17, Failures: 1, Errors: 0, Skipped: 0, Time
> elapsed: 8.324 sec <<< FAILURE! - in
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl
> 2016-02-13 09:16:50
> testUnusableNodeTransition(org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl)
> Time elapsed: 5.165 sec <<< FAILURE!
> 2016-02-13 09:16:50 java.lang.AssertionError: expected:<SUCCEEDED> but
> was:<ERROR>
> 2016-02-13 09:16:50 at org.junit.Assert.fail(Assert.java:88)
> 2016-02-13 09:16:50 at org.junit.Assert.failNotEquals(Assert.java:743)
> 2016-02-13 09:16:50 at org.junit.Assert.assertEquals(Assert.java:118)
> 2016-02-13 09:16:50 at org.junit.Assert.assertEquals(Assert.java:144)
> 2016-02-13 09:16:50 at
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl.assertJobState(TestJobImpl.java:977)
> 2016-02-13 09:16:50 at
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestJobImpl.testUnusableNodeTransition(TestJobImpl.java:627)
> 2016-02-13 09:16:50
> 2016-02-13 09:16:50
> 2016-02-13 09:16:50 Results :
> 2016-02-13 09:16:50
> 2016-02-13 09:16:50 Failed tests:
> 2016-02-13 09:16:50
> TestJobImpl.testUnusableNodeTransition:627->assertJobState:977
> expected:<SUCCEEDED> but was:<ERROR>
> 2016-02-13 09:16:50
> 2016-02-13 09:16:50 Tests run: 17, Failures: 1, Errors: 0, Skipped: 0.
> Looking at the code, an JobUpdatedNodesEvent is handled by putting an
> TaskAttemptKill event on the async dispatcher queue and return immediately,
> but the event might not have been processed by the time all JobTaskEvents
> events are seen by the job (the jobTaskSucceeded events are handed to Job
> immediately without going through the dispatcher). Therefore, there is a
> slight chance that the job will see all three succeeded attempts and
> transition to Committing state before the taskAttemptKill event is handled by
> the dispatcher. Committing jobs will reject later JobTaskEvents received,
> transition to InternalError state and cause the test to fail.
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