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From "Yoram Arnon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-225) tasks are left over when a job fails
Date Wed, 17 May 2006 17:52:05 GMT
tasks are left over when a job fails

         Key: HADOOP-225
         URL: http://issues.apache.org/jira/browse/HADOOP-225
     Project: Hadoop
        Type: Bug

  Components: mapred  
    Reporter: Yoram Arnon
    Priority: Minor

when jobs are stopped or otherwise fail, tasks are often left around.
the job tracker shows that there are map or reduce (mostly reduce) tasks running, when no
job is running.
these accumulate over time.
eventually there are so many of those, that the job tracker can't launch new tasks, requiring
a restart of the MR cluster.

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