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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-597) transmission errors to the reduce will cause map output to be considered lost
Date Wed, 11 Oct 2006 16:58:35 GMT
transmission errors to the reduce will cause map output to be considered lost
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                 Key: HADOOP-597
                 URL: http://issues.apache.org/jira/browse/HADOOP-597
             Project: Hadoop
          Issue Type: Bug
    Affects Versions: 0.7.0
            Reporter: Owen O'Malley
         Assigned To: Owen O'Malley
             Fix For: 0.7.1


When the mapOutput servlet gets an IOException from reading the map output file, it correctly
declares the map output lost. However, an IOException writing to the socket should NOT cause
the map output to be declared lost. Unfortunately, the current implementation always declares
the map output lost. When the map output is lost, the map is re-run on a different computer.

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