Job.setNumReduceTasks doesn't work
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Key: MAPREDUCE-1742
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1742
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: job submission
Affects Versions: 0.22.0
Environment: Hadoop 0.22.0-SNAPSHOT, latest version from trunc.
Reporter: Danny Leshem
Calling Job.setNumReduceTasks(0) doesn't seem to work with the latest trunc,
and the job still goes through a reduction phase.
Also, Job.setNumReduceTasks(1) doesn't seem to work either, and several
reducers are spawned.
It seems that something about Job.setNumReduceTasks got broken recently.
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