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https://issues.apache.org/jira/browse/MAPREDUCE-5963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14070737#comment-14070737
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Jason Lowe commented on MAPREDUCE-5963:
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+1 lgtm. Committing this.
> ShuffleHandler DB schema should be versioned with compatible/incompatible
> changes
> ---------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5963
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5963
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Affects Versions: 2.4.1
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: MAPREDUCE-5963-v2.1.patch, MAPREDUCE-5963-v2.patch,
> MAPREDUCE-5963.patch
>
>
> ShuffleHandler persist job shuffle info into DB schema, which should be
> versioned with compatible/incompatible changes to support rolling upgrade.
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