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https://issues.apache.org/jira/browse/MAPREDUCE-4937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13963349#comment-13963349
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Eric Payne commented on MAPREDUCE-4937:
---------------------------------------
MrAppMaster Unit test failures were not introduced by this patch. Please see
other Precommit-MAPREDUCE-Builds such as
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4488/
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4486/
To verify this, I cloned trunk into a new local directory, built, and ran mvn
test -Dtest=TestMRAppMaster . This resulted in the test failures described
above.
> MR AM handles an oversized split metainfo file poorly
> -----------------------------------------------------
>
> Key: MAPREDUCE-4937
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4937
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am
> Affects Versions: 2.0.2-alpha, 0.23.5
> Reporter: Jason Lowe
> Assignee: Eric Payne
> Attachments: MAPREDUCE-4937.MRAMHandlOversizeSplits.txt
>
>
> When an job runs with a split metainfo file that's larger than it has been
> configured to handle then it just crashes. This leaves the user with a
> less-than-ideal debug session since there are no useful diagnostic messages
> sent to the client for this failure. In addition it crashes before
> registering/unregistering with the RM and crashes without generating history,
> so the proxy URL is not very useful and there's no archived configuration to
> check to see what setting the AM was using when it encountered the error.
> The AM should handle this error case more gracefully and treat the failure as
> it does any other failed job, with a proper unregistration from the RM and
> with history.
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