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https://issues.apache.org/jira/browse/MAPREDUCE-4808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13540091#comment-13540091
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Alejandro Abdelnur commented on MAPREDUCE-4808:
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+1, to the patch and design doc.
I'll add that having this pluggability in place it would have allowed to have a
fix for MAPREDUCE-4842 avail for jobs hitting the problem until the fix is
delivered in a Hadoop release.
I'll wait until after the New Year to give the opportunity to others to
review/comment the patch and design doc.
> Allow reduce-side merge to be pluggable
> ---------------------------------------
>
> Key: MAPREDUCE-4808
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4808
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Affects Versions: 2.0.2-alpha
> Reporter: Arun C Murthy
> Assignee: Mariappan Asokan
> Fix For: 2.0.3-alpha
>
> Attachments: COMBO-mapreduce-4809-4812-4808.patch,
> mapreduce-4808.patch, mapreduce-4808.patch, mapreduce-4808.patch,
> mapreduce-4808.patch, mapreduce-4808.patch, MergeManagerPlugin.pdf
>
>
> Allow reduce-side merge to be pluggable for MAPREDUCE-2454
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