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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-590) Reducer's pass merger should utilize temporary directories on different disks
Date Tue, 10 Oct 2006 16:41:19 GMT
Reducer's pass merger should utilize temporary directories on different disks 
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                 Key: HADOOP-590
                 URL: http://issues.apache.org/jira/browse/HADOOP-590
             Project: Hadoop
          Issue Type: Improvement
          Components: mapred
            Reporter: Runping Qi



The current implementation of pass merge of SequenceFile class uses the same temp directory
for the in/out files of the pass merger class, even though when multiple temp dirs are available.
Thus, it cannot fully utlize the advantage of multiple disks during sort.



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