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Date: Fri, 21 Aug 2009 08:00:15 -0700 (PDT)
From: "Tom White (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-798) MRUnit should be able to test a
 succession of MapReduce passes
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746001#action_12746001 ] 

Tom White commented on MAPREDUCE-798:
-------------------------------------

If this is different from ChainMapper, it should probably not have "Chain" in its name. PipelineMapReduceDriver?

> MRUnit should be able to test a succession of MapReduce passes
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-798
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-798
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Aaron Kimball
>            Assignee: Aaron Kimball
>         Attachments: MAPREDUCE-798.2.patch, MAPREDUCE-798.patch
>
>
> MRUnit can currently test that the inputs to a given (mapper, reducer) "job" produce certain outputs at the end of the reducer. It would be good to support more end-to-end tests of a series of MapReduce jobs that form a longer pipeline surrounding some data.

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