Port HADOOP-4667 to the default Map-Reduce scheduler
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                 Key: HADOOP-5089
                 URL: https://issues.apache.org/jira/browse/HADOOP-5089
             Project: Hadoop Core
          Issue Type: Improvement
          Components: mapred
            Reporter: Arun C Murthy
            Assignee: Arun C Murthy
             Fix For: 0.20.0


HADOOP-4667 has implemented 'global scheduling' for the fair-share scheduler 
with very promising results - we should port the same to the default 
o.a.h.mapred.JobQueueTaskScheduler.

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