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https://issues.apache.org/jira/browse/YARN-1239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jian He updated YARN-1239:
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Attachment: YARN-1239.patch
upload a preliminary patch without test case.
Added a configuration for the state store version number and attached the
version number to the end of store root directory name.
The behavior would be if the specified versioned root dir exists, RM store will
pick up that root dir, otherwise create a new root dir with the version number.
> Save version information in the state store
> -------------------------------------------
>
> Key: YARN-1239
> URL: https://issues.apache.org/jira/browse/YARN-1239
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Bikas Saha
> Assignee: Jian He
> Attachments: YARN-1239.patch
>
>
> When creating root dir for the first time we should write version 1. If root
> dir exists then we should check that the version in the state store matches
> the version from config.
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