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https://issues.apache.org/jira/browse/MAPREDUCE-6641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15343122#comment-15343122
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Haibo Chen commented on MAPREDUCE-6641:
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Looks like a timing issue. A TaskAttempt, before it goes into Killed State,
puts a TA Started and a TA Killed JH event onto the event queue. The dispatcher
processes the event asynchronously, so the fact that TaskAttempt is in kill
state does not guarantee "TA Started JH Event" is processed.
> TestTaskAttempt fails in trunk
> ------------------------------
>
> Key: MAPREDUCE-6641
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6641
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: test
> Reporter: Tsuyoshi Ozawa
> Assignee: Haibo Chen
> Attachments:
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt-output.txt
>
>
> {code}
> Running org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt
> Tests run: 23, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 24.917 sec
> <<< FAILURE! - in org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt
> testMRAppHistoryForTAFailedInAssigned(org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt)
> Time elapsed: 12.732 sec <<< FAILURE!
> java.lang.AssertionError: No Ta Started JH Event
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.testTaskAttemptAssignedKilledHistory(TestTaskAttempt.java:388)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.TestTaskAttempt.testMRAppHistoryForTAFailedInAssigned(TestTaskAttempt.java:177)
> {code}
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