Speed up SequenceFile sort with memory reduction
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         Key: HADOOP-287
         URL: http://issues.apache.org/jira/browse/HADOOP-287
     Project: Hadoop
        Type: Improvement

  Components: io  
    Versions: 0.3.2    
    Reporter: Benjamin Reed
 Attachments: zoom-sort.patch

I replaced the merge sort with a quick sort and it yielded approx 30% improvement in sort time. It also reduced the memory requirement for sorting because the sort is done in place.

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