Zhijie Shen commented on YARN-2375:

[~mitdesai], thanks for the patch. Two suggestions:

1. We should still let DS work when the timeline service is disable, and we 
just need to prevent sending the timeline data to the timeline server while the 
DS app is running.

2. In JobHistoryEventHandler we need to check both the global config and the mr 
specific config to decide whether we emit MR history events.

> Allow enabling/disabling timeline server per framework
> ------------------------------------------------------
>                 Key: YARN-2375
>                 URL: https://issues.apache.org/jira/browse/YARN-2375
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jonathan Eagles
>            Assignee: Mit Desai
>         Attachments: YARN-2375.patch, YARN-2375.patch
> This JIRA is to remove the ats enabled flag check within the 
> TimelineClientImpl. Example where this fails is below.
> While running secure timeline server with ats flag set to disabled on 
> resource manager, Timeline delegation token renewer throws an NPE. 

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