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https://issues.apache.org/jira/browse/MAPREDUCE-5542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14169028#comment-14169028
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Rohith commented on MAPREDUCE-5542:
-----------------------------------
I updated the patch. Please review..
Approach I followed is whenever job status is null check the job status only in
RM for finished or not.If finished/killed/failed, and return silently. I
consider the scenario where if application state is not finished/killed/failed
, then stil potentially throw NPE from patch. CMIAW, but here I do not think
the scenario where JobStatus is null and application is still running!!??
> Killing a job just as it finishes can generate an NPE in client
> ---------------------------------------------------------------
>
> Key: MAPREDUCE-5542
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5542
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client, mrv2
> Affects Versions: 2.1.0-beta, 0.23.9
> Reporter: Jason Lowe
> Assignee: Rohith
> Attachments: MAPREDUCE-5542.1.patch, MAPREDUCE-5542.2.patch,
> MAPREDUCE-5542.3.patch
>
>
> If a client tries to kill a job just as the job is finishing then the client
> can crash with an NPE.
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