Varun Vasudev created YARN-3248:

             Summary: Display count of nodes blacklisted by apps in the web UI
                 Key: YARN-3248
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: resourcemanager
            Reporter: Varun Vasudev
            Assignee: Varun Vasudev

It would be really useful when debugging app performance and failure issues to 
get a count of the nodes blacklisted by individual apps displayed in the web UI.

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