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From "Thomas Graves (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2524) Backport trunk heuristics for failing maps when we get fetch failures retrieving map output during shuffle
Date Fri, 20 May 2011 14:06:47 GMT
Backport trunk heuristics for failing maps when we get fetch failures retrieving map output
during shuffle
----------------------------------------------------------------------------------------------------------

                 Key: MAPREDUCE-2524
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2524
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: tasktracker
    Affects Versions: 0.20.204.0
            Reporter: Thomas Graves
            Assignee: Thomas Graves
            Priority: Minor
             Fix For: 0.20.205.0


The heuristics for failing maps when we get map output fetch failures during the shuffle is
pretty conservative in 20. Backport the heuristics from trunk which are more aggressive, simpler,
and configurable.



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