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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6801) Fix flaky TestKill.testKillJob()
Date Fri, 18 Nov 2016 08:37:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15676157#comment-15676157
] 

Varun Saxena commented on MAPREDUCE-6801:
-----------------------------------------

+1
Will commit it later today.

> Fix flaky TestKill.testKillJob()
> --------------------------------
>
>                 Key: MAPREDUCE-6801
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6801
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Haibo Chen
>            Assignee: Haibo Chen
>         Attachments: mapreduce6801.001.patch, mapreduce6801.002.patch
>
>
> TestKill.testKillJob often fails for the same reason with the following error message:
> {code}
> 1 tests failed.
> FAILED:  org.apache.hadoop.mapreduce.v2.app.TestKill.testKillJob
> Error Message:
> Task state not correct expected:<KILLED> but was:<NEW/SCHEDULED/RUNNING>
> Stack Trace:
> java.lang.AssertionError: Task state not correct expected:<KILLED> but was:<NEW/SCHEDULED/RUNNING>
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.failNotEquals(Assert.java:743)
> 	at org.junit.Assert.assertEquals(Assert.java:118)
> 	at org.apache.hadoop.mapreduce.v2.app.TestKill.testKillJob(TestKill.java:84)
> {code}
> The root cause is that when the job is in KILLED state from an external view, TaskKillEvents
and TaskAttemptKillEvents placed on the event loop queue may not have been processed by the
dispatcher thread.



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