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Posted to mapreduce-issues@hadoop.apache.org by "Sean Zhang (JIRA)" <ji...@apache.org> on 2012/10/09 18:00:03 UTC
[jira] [Commented] (MAPREDUCE-2454) Allow external sorter plugin
for MR
[ https://issues.apache.org/jira/browse/MAPREDUCE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13472494#comment-13472494 ]
Sean Zhang commented on MAPREDUCE-2454:
---------------------------------------
This is going to enable a new set of potential for Hadoop. I hope this can be committed soon.
> Allow external sorter plugin for MR
> -----------------------------------
>
> Key: MAPREDUCE-2454
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2454
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Affects Versions: 2.0.0-alpha, 3.0.0, 2.0.2-alpha
> Reporter: Mariappan Asokan
> Assignee: Mariappan Asokan
> Priority: Minor
> Labels: features, performance, plugin, sort
> Attachments: HadoopSortPlugin.pdf, HadoopSortPlugin.pdf, KeyValueIterator.java, MapOutputSorterAbstract.java, MapOutputSorter.java, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mapreduce-2454.patch, mr-2454-on-mr-279-build82.patch.gz, MR-2454-trunkPatchPreview.gz, ReduceInputSorter.java
>
>
> Define interfaces and some abstract classes in the Hadoop framework to facilitate external sorter plugins both on the Map and Reduce sides.
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