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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