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https://issues.apache.org/jira/browse/YARN-6736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323787#comment-16323787
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Sunil G commented on YARN-6736:
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Thanks [~agresch] and [~rohithsharma]. This makes sense to have it can where we
want to have upgrade seamlessly from ATS1.5 to 2 to avoid data loss.
> Consider writing to both ats v1 & v2 from RM for smoother upgrades
> ------------------------------------------------------------------
>
> Key: YARN-6736
> URL: https://issues.apache.org/jira/browse/YARN-6736
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Vrushali C
> Assignee: Aaron Gresch
> Attachments: YARN-6736-YARN-5355.001.patch,
> YARN-6736-YARN-5355.002.patch, YARN-6736-YARN-5355.003.patch,
> YARN-6736-YARN-5355.004.patch, YARN-6736-YARN-5355.005.patch,
> YARN-6736.001.patch
>
>
> When the cluster is being upgraded from atsv1 to v2, it may be good to have a
> brief time period during which RM writes to both atsv1 and v2. This will help
> frameworks like Tez migrate more smoothly.
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