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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-798) MRUnit should be able to test a succession of MapReduce passes
Date Fri, 21 Aug 2009 15:00:15 GMT

    [ 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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