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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1742) Job.setNumReduceTasks doesn't work
Date Thu, 29 Apr 2010 16:23:55 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom White updated MAPREDUCE-1742:
---------------------------------

    Fix Version/s: 0.21.0
         Priority: Blocker  (was: Major)

I think this is a blocker.

> Job.setNumReduceTasks doesn't work
> ----------------------------------
>
>                 Key: MAPREDUCE-1742
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1742
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: job submission
>    Affects Versions: 0.22.0
>         Environment: Hadoop 0.22.0-SNAPSHOT, latest version from trunc.
>            Reporter: Danny Leshem
>            Priority: Blocker
>             Fix For: 0.21.0
>
>
> Calling Job.setNumReduceTasks(0) doesn't seem to work with the latest trunc, and the
job still goes through a reduction phase.
> Also, Job.setNumReduceTasks(1) doesn't seem to work either, and several reducers are
spawned.
> It seems that something about Job.setNumReduceTasks got broken recently.

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