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https://issues.apache.org/jira/browse/MAPREDUCE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mariappan Asokan updated MAPREDUCE-2454:
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Attachment: HadoopSortPlugin.pdf
mapreduce-2454.patch
Hi Arun,
I have attached the latest patch that includes a test. I have also uploaded
the latest pdf document on the plugin in order to make the code review somewhat
easier. If you want more details in the document, please let me know.
It appears that some tests unrelated to this Jira have been failing. I am not
able to pick up a clean trunk to work with.
Thanks for your patience.
-- Asokan
> 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, HadoopSortPlugin.pdf,
> KeyValueIterator.java, MapOutputSorterAbstract.java, MapOutputSorter.java,
> 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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