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https://issues.apache.org/jira/browse/MAPREDUCE-4937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13975143#comment-13975143
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Hudson commented on MAPREDUCE-4937:
-----------------------------------

SUCCESS: Integrated in Hadoop-Hdfs-trunk #1738 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1738/])
MAPREDUCE-4937. MR AM handles an oversized split metainfo file poorly. 
Contributed by Eric Payne (jlowe: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1588559)
* /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/MRAppMaster.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/event/JobEventType.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestJobImpl.java


> 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
>             Fix For: 3.0.0, 2.5.0
>
>         Attachments: MAPREDUCE-4937.MRAMHandlOversizeSplits.txt, 
> MAPREDUCE-4937.MRAMHandlOversizeSplits.txt, 
> 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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