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https://issues.apache.org/jira/browse/MAPREDUCE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13444469#comment-13444469
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Arun C Murthy commented on MAPREDUCE-2454:
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Asokan - I started looking at this patch. Can you pls provide a brief overview
of your design, particularly the new interfaces you are adding and how they
play? Is your old pdf still valid? Tx.
> 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, 2.2.0-alpha
> Reporter: Mariappan Asokan
> Assignee: Mariappan Asokan
> Priority: Minor
> Labels: features, performance, plugin, sort
> Attachments: HadoopSortPlugin.pdf, KeyValueIterator.java,
> MapOutputSorterAbstract.java, MapOutputSorter.java, 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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