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https://issues.apache.org/jira/browse/YARN-4356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15051498#comment-15051498
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Sangjin Lee commented on YARN-4356:
-----------------------------------

Thanks for the feedback. Now that YARN-3623 has been committed, I'll first 
cherry-pick that commit over to our branch.

I'll also update the patch based on comments from [~djp] and [~Naganarasimha].

> ensure the timeline service v.2 is disabled cleanly and has no impact when 
> it's turned off
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-4356
>                 URL: https://issues.apache.org/jira/browse/YARN-4356
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>            Priority: Critical
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-4356-feature-YARN-2928.002.patch, 
> YARN-4356-feature-YARN-2928.003.patch, YARN-4356-feature-YARN-2928.004.patch, 
> YARN-4356-feature-YARN-2928.005.patch, 
> YARN-4356-feature-YARN-2928.poc.001.patch
>
>
> For us to be able to merge the first milestone drop to trunk, we want to 
> ensure that once disabled the timeline service v.2 has no impact from the 
> server side to the client side. If the timeline service is not enabled, no 
> action should be done. If v.1 is enabled but not v.2, v.1 should behave the 
> same as it does before the merge.



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