Jian He created MAPREDUCE-5497:
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             Summary: '5s sleep'  in MRAppMaster.shutDownJob is only needed 
before stopping ClientService
                 Key: MAPREDUCE-5497
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5497
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Jian He
            Assignee: Jian He


Since the '5s sleep' is for the purpose to let clients know the final states, 
put it after other services are stopped and only before stopping ClientService 
is enough. This can reduce some race conditions like MAPREDUCE-5471

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