[jira] [Created] (YARN-4164) Retrospect update ApplicationPriority response API

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

Rohith Sharma K S created YARN-4164:
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             Summary: Retrospect update ApplicationPriority response API
                 Key: YARN-4164
                 URL: https://issues.apache.org/jira/browse/YARN-4164
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: resourcemanager
            Reporter: Rohith Sharma K S


Currently {{ApplicationClientProtocol#updateApplicationPriority()}} API returns empty UpdateApplicationPriorityResponse response.
But RM update priority to the cluster.max-priority if the given priority is greater than cluster.max-priority. In this scenarios, need to intimate back to client that updated  priority rather just keeping quite where client assumes that given priority itself is taken.

During application submission also has same scenario can happen, but I feel when 
explicitly invoke via ApplicationClientProtocol#updateApplicationPriority(), response should have updated priority in response. 



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