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https://issues.apache.org/jira/browse/YARN-2045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated YARN-2045:
-----------------------------

    Attachment: YARN-2045.patch

Upload a patch for this jira, in this patch:
- replace DB_SCHEMA_VERSION from a string with NMStateVersion which has 
majorVersion and minorVersion
- check compatibility in NMStateStore start
- add tests for compatible/incompatible version changes.

> 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
>    Affects Versions: 2.4.1
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: YARN-2045.patch
>
>
> 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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