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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1431) Map tasks can't timeout for failing to call progress
Date Fri, 25 May 2007 04:22:16 GMT
Map tasks can't timeout for failing to call progress

                 Key: HADOOP-1431
                 URL: https://issues.apache.org/jira/browse/HADOOP-1431
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.13.0
            Reporter: Owen O'Malley
         Assigned To: Arun C Murthy
             Fix For: 0.13.0

Currently the map task runner creates a thread that calls progress every second to keep the
system from killing the map if the sort takes too long. This is the wrong approach, because
it will cause stuck tasks to not be killed. The right solution is to have the sort call progress
as it actually makes progress. This is part of what is going on in HADOOP-1374. A map gets
stuck at 100% progress, but not done.

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