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From "Ramya R (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5338) Reduce tasks are stuck waiting for map outputs when none are in progress
Date Thu, 26 Feb 2009 12:51:02 GMT
Reduce tasks are stuck waiting for map outputs when none are in progress
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                 Key: HADOOP-5338
                 URL: https://issues.apache.org/jira/browse/HADOOP-5338
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.20.0
            Reporter: Ramya R
             Fix For: 0.20.0


When JT is restarted several times, a situation is encountered when the reduce tasks are stuck
forever waiting for map outputs. However 100%map is complete and none of the map tasks are
in progress. The reduce tasks wait infinitely.

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