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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4730) multi-threaded merge phase
Date Wed, 26 Nov 2008 02:50:44 GMT
multi-threaded merge phase
--------------------------

                 Key: HADOOP-4730
                 URL: https://issues.apache.org/jira/browse/HADOOP-4730
             Project: Hadoop Core
          Issue Type: Improvement
          Components: mapred
    Affects Versions: 0.18.1
            Reporter: Christian Kunz


Doing merges in multiple threads (when enough cores are available -- a monitoring issue),
the time spent in merging could be cut by a factor equal to the number of threads.

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