Allow external sorter plugin for MR
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Key: HADOOP-7242
URL: https://issues.apache.org/jira/browse/HADOOP-7242
Project: Hadoop Common
Issue Type: New Feature
Affects Versions: 0.21.0
Reporter: Mariappan Asokan
Priority: Minor
Define interfaces and some abstract classes in the Hadoop framework to
facilitate external sorter plugins both on the Map and Reduce sides.
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