Jian He created YARN-562:
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             Summary: AM should reject containers allocated by previous RM
                 Key: YARN-562
                 URL: https://issues.apache.org/jira/browse/YARN-562
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Jian He
            Assignee: Jian He


Its possible that after RM shutdown, before AM goes down,AM still call 
startContainer on NM with containers allocated by previous RM. When RM comes 
back, NM doesn't know whether this container launch request comes from previous 
RM or the current RM. we should reject containers allocated by previous RM 

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