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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1514) Progress reporting not handled for the case of empty map outputs
Date Thu, 21 Jun 2007 08:32:25 GMT
Progress reporting not handled for the case of empty map outputs
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                 Key: HADOOP-1514
                 URL: https://issues.apache.org/jira/browse/HADOOP-1514
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.14.0
            Reporter: Devaraj Das
            Assignee: Vivek Ratan
            Priority: Blocker
             Fix For: 0.14.0


For the randomwriter run, the maps actually don't generate any output, and the reducer is
just waiting for the maps to complete. During that time, progress reporting is not done and
hence the process gets killed. Also the case of empty map outputs needs to be handled more
generally.

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