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https://issues.apache.org/jira/browse/YARN-667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13996354#comment-13996354
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Junping Du commented on YARN-667:
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Thanks for your comments, [~zjshen]!
bq. Shall we consider the version of history data as well?
That's good point. We should consider history data, like:
ApplicationHistoryData, ApplicationAttemptHistoryData, ContainerHistoryData,
etc. could be variable in future and make them proper versioned. In addition,
any changes on format (i.e. APPLICATION_PREFIX, etc.) and path of history file
(root+appID for now) could be very challenge on rolling upgrade (also seen as
incompatible change I think). [~zjshen], do you have sense on how possibility
it could happen in 2.X as you are currently work on ATS?
> Data persisted in RM should be versioned
> ----------------------------------------
>
> Key: YARN-667
> URL: https://issues.apache.org/jira/browse/YARN-667
> Project: Hadoop YARN
> Issue Type: Sub-task
> Affects Versions: 2.0.4-alpha
> Reporter: Siddharth Seth
> Assignee: Junping Du
>
> Includes data persisted for RM restart, NodeManager directory structure and
> the Aggregated Log Format.
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