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https://issues.apache.org/jira/browse/MAPREDUCE-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096439#comment-13096439
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Arun C Murthy commented on MAPREDUCE-2927:
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It does. The 'isUber' *code* is legacy of MAPREDUCE-1220 which isn't relevant 
in MR2 context. Makes sense?

> CompletedJob.isUber throws a Yarn exception which makes the JobHistory UI 
> unusable.
> -----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2927
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2927
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 0.23.0, 0.24.0
>
>
> CompletedJob.isUber on the MR-279 branch returns jobInfo.getIsUber() but got 
> turned into an exception when MR-279 was merged to trunk. SVN Revision 
> 1159166.

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