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https://issues.apache.org/jira/browse/MAPREDUCE-5835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13982017#comment-13982017
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Hudson commented on MAPREDUCE-5835:
-----------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1769 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1769/])
MAPREDUCE-5835. Killing Task might cause the job to go to ERROR state.
Contributed by Ming Ma (jlowe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1590168)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestKill.java
> Killing Task might cause the job to go to ERROR state
> -----------------------------------------------------
>
> Key: MAPREDUCE-5835
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5835
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.4.0
> Reporter: Ming Ma
> Assignee: Ming Ma
> Priority: Critical
> Fix For: 3.0.0, 2.4.1
>
> Attachments: MAPREDUCE-5835.patch
>
>
> There could be a race condition if job is killed right after task attempt
> receives TA_DONE event. In that case, TaskImpl might receive
> T_ATTEMPT_SUCCEEDED followed by T_ATTEMPTED_KILLED for the same attempt, thus
> transition job to ERROR state.
> a. The task is in KILL_WAIT.
> b. TA receives TA_DONE event.
> c. Before TA transitions to SUCCEEDED state, Task sends TA_KILL event.
> d. TA transitions to SUCCEEDED state and thus send T_ATTEMPT_SUCCEEDED to the
> task. The task transitions to KILLED state.
> e. TA processes TA_KILL event and sends T_ATTEMPT_KILLED to the task.
> f. When task is in KILLED state, it can't handle T_ATTEMPT_KILLED event, thus
> transition job to ERROR state.
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