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https://issues.apache.org/jira/browse/MAPREDUCE-3138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120367#comment-13120367
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Roman Shaposhnik commented on MAPREDUCE-3138:
---------------------------------------------

First of all, I'm really happy to see a move towards helping the downstream 
clients migrate to .23 smoothly. That said,
I'm not quite sure what is the intent of the patch. It would be very nice to 
have a clear description of what is it trying to accomplish. As it stands now, 
I can't really build Pig/Hive (or anything else for that matter) against .23 
nor can I run the older binaries. Has this patch been tested?
                
> Allow for applications to deal with MAPREDUCE-954
> -------------------------------------------------
>
>                 Key: MAPREDUCE-3138
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3138
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Arun C Murthy
>            Assignee: Owen O'Malley
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-3138.0.22.patch, MAPREDUCE-3138.patch, 
> MAPREDUCE-3138.patch
>
>
> MAPREDUCE-954 changed the context-objs api to interfaces. This breaks Pig. We 
> need a bridge for them to move to 0.23.

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