[
https://issues.apache.org/jira/browse/MAPREDUCE-4808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alejandro Abdelnur updated MAPREDUCE-4808:
------------------------------------------
Description:
Now that Shuffle is pluggable (MAPREDUCE-4049), it would be convenient for
alternate implementations to be able to reuse portions of the default
implementation.
This would come with the strong caveat that these classes are LimitedPrivate
and Unstable.
was:Allow reduce-side merge to be pluggable for MAPREDUCE-2454
Summary: Refactor MapOutput and MergeManager to facilitate reuse by
Shuffle implementations (was: Allow reduce-side merge to be pluggable)
Arun, thanks for pointing out the wrong summary/description. I think we ended
up with it when creating the subtasks for MAPREDUCE-2454 based on previous
ideas.
I've just updated it reflect the scope of the current patch.
> Refactor MapOutput and MergeManager to facilitate reuse by Shuffle
> implementations
> ----------------------------------------------------------------------------------
>
> 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, mapreduce-4808.patch,
> mapreduce-4808.patch, MergeManagerPlugin.pdf
>
>
> Now that Shuffle is pluggable (MAPREDUCE-4049), it would be convenient for
> alternate implementations to be able to reuse portions of the default
> implementation.
> This would come with the strong caveat that these classes are LimitedPrivate
> and Unstable.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
