Xuan Gong created YARN-5746:

             Summary: The state of the parentQueue and its childQueues should 
be synchronized.
                 Key: YARN-5746
                 URL: https://issues.apache.org/jira/browse/YARN-5746
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
            Reporter: Xuan Gong
            Assignee: Xuan Gong

The state of the parentQueue and its childQeues need to be synchronized. 
* If the state of the parentQueue becomes STOPPED, the state of its childQueue 
need to become STOPPED as well. 
* If we change the state of the queue to RUNNING, we should make sure the state 
of all its ancestor must be RUNNING. Otherwise, we need to fail this operation.

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