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From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1463) Reducer should start faster for smaller jobs
Date Fri, 05 Feb 2010 22:08:27 GMT
Reducer should start faster for smaller jobs
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                 Key: MAPREDUCE-1463
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1463
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: contrib/fair-share
            Reporter: Scott Chen
            Assignee: Scott Chen


Our users often complain about the slowness of smaller ad-hoc jobs.
The overhead to wait for the reducers to start in this case is significant.
It will be good if we can start the reducer sooner in this case.

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