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From "Sean Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2454) Allow external sorter plugin for MR
Date Tue, 24 Jul 2012 03:29:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421144#comment-13421144
] 

Sean Zhang commented on MAPREDUCE-2454:
---------------------------------------

Asokan,
Your patch is based on revision 1363960 which is in between the following two builds of the
trunk. 
https://builds.apache.org/view/Hadoop/job/Hadoop-Mapreduce-trunk/1142/ (1363576)
https://builds.apache.org/view/Hadoop/job/Hadoop-Mapreduce-trunk/1143/ (1364020)

Both of the above builds failed with the following:
Running org.apache.hadoop.mapreduce.lib.input.TestCombineFileInputFormat
Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 8.385 sec <<< FAILURE!

If I am not mistaken, most likely the failure is not caused by your change. You just need
to pick a clean base. What do you think?

                
> 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
>            Reporter: Mariappan Asokan
>            Priority: Minor
>              Labels: features, performance, plugin, sort
>         Attachments: HadoopSortPlugin.pdf, KeyValueIterator.java, MR-2454-trunkPatchPreview.gz,
MapOutputSorter.java, MapOutputSorterAbstract.java, ReduceInputSorter.java, mapreduce-2454.patch,
mr-2454-on-mr-279-build82.patch.gz
>
>
> 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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