[jira] [Commented] (MAPREDUCE-2756) JobControl can drop jobs if an error occurs

["Arun C Murthy (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13082767#comment-13082767 ] 

Arun C Murthy commented on MAPREDUCE-2756:
------------------------------------------

Robert - the patch looks good. Can you pls comment on any manual testing you've done to verify this?

Also, can you pls provide the patch for trunk too? Alternately, I can wait for the merge and commit it after. Thanks.

> JobControl can drop jobs if an error occurs
> -------------------------------------------
>
>                 Key: MAPREDUCE-2756
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2756
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Minor
>             Fix For: 0.23.0
>
>         Attachments: MR-2756-V1.patch
>
>
> If you run a pig job with UDFs that has not been recompiled for MRV2.  There are situations where pig will fail with an error message stating that Hadoop failed and did not give a reason.  There is even the possibility of deadlock if an Error is thrown and the JobControl thread dies.

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