Rohith created YARN-2762:
----------------------------

             Summary: Provide RMAdminCLI args validation for NodeLabelManager 
operations
                 Key: YARN-2762
                 URL: https://issues.apache.org/jira/browse/YARN-2762
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: resourcemanager
            Reporter: Rohith
            Assignee: Rohith
            Priority: Minor


All NodeLabel args validation's are done at server side. The same can be done 
at RMAdminCLI so that unnecessary RPC calls can be avoided.
And for the input such as "x,y,,z,", no need to add empty string instead can be 
skipped.



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