Junping Du created YARN-2045:
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             Summary: Data persisted in NM should be versioned
                 Key: YARN-2045
                 URL: https://issues.apache.org/jira/browse/YARN-2045
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: nodemanager
            Reporter: Junping Du
            Assignee: Junping Du


As a split task from YARN-667, we want to add version info to NM related data, include:
- NodeManager local LevelDB state
- NodeManager directory structure




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