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Posted to mapreduce-dev@hadoop.apache.org by "Ed Mazur (JIRA)" <ji...@apache.org> on 2009/12/09 21:57:18 UTC

[jira] Created: (MAPREDUCE-1287) HashPartitioner calls hashCode() when there is only 1 reducer

HashPartitioner calls hashCode() when there is only 1 reducer
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                 Key: MAPREDUCE-1287
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1287
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
    Affects Versions: 0.22.0
            Reporter: Ed Mazur
            Priority: Minor
             Fix For: 0.22.0


HashPartitioner could be optimized to not call the key's hashCode() if there is only 1 reducer.

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