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From "Rohith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6332) Add more required API's to MergeManager interface
Date Tue, 12 May 2015 11:23:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539669#comment-14539669
] 

Rohith commented on MAPREDUCE-6332:
-----------------------------------

[~vinodkv] Kindly review the patch ..

> Add more required API's to MergeManager interface 
> --------------------------------------------------
>
>                 Key: MAPREDUCE-6332
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6332
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>    Affects Versions: 2.5.0, 2.6.0, 2.7.0
>            Reporter: Rohith
>            Assignee: Rohith
>              Labels: BB2015-05-TBR
>         Attachments: 0001-MAPREDUCE-6332.patch, 0002-MAPREDUCE-6332.patch
>
>
> MR provides ability to the user for plugin custom ShuffleConsumerPlugin using *mapreduce.job.reduce.shuffle.consumer.plugin.class*.
 When the user is allowed to use this configuration as plugin, user also interest in implementing
his own MergeManagerImpl. 
> But now , user is forced to use MR provided MergeManagerImpl instead of custom MergeManagerImpl
when user is using shuffle.consumer.plugin class. There should be well defined API's in MergeManager
that can be used for any implementation without much effort to user for custom implementation.



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