Wangda Tan created YARN-2924:
--------------------------------

             Summary: Node to labels mapping should not transfer to lowercase 
when adding from RMAdminCLI
                 Key: YARN-2924
                 URL: https://issues.apache.org/jira/browse/YARN-2924
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: client
            Reporter: Wangda Tan
            Assignee: Wangda Tan


In existing implementation, when parsing node-to-labels mapping from 
RMAdminCLI, it transferred all labels to lowercase:

{code}
      for (int i = 1; i < splits.length; i++) {
        if (!splits[i].trim().isEmpty()) {
          map.get(nodeId).add(splits[i].trim().toLowerCase());
        }
      }
{code}

That is not correct, we should fix that.



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