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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1042) Improve the handling of failed map output fetches
Date Tue, 27 Feb 2007 05:35:06 GMT
Improve the handling of failed map output fetches
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                 Key: HADOOP-1042
                 URL: https://issues.apache.org/jira/browse/HADOOP-1042
             Project: Hadoop
          Issue Type: Improvement
          Components: mapred
    Affects Versions: 0.11.2
            Reporter: Devaraj Das
         Assigned To: Devaraj Das


Currently, whenever fetch of a map output fails the corresponding MapOutputLocation is added
to a List datastructure for later retrial. But, if the failure was due to a lost task, the
entry that was added is not deleted. For such cases, unnecessary retrials will happen. This
situation should be prevented.

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