Vinod Kumar Vavilapalli commented on YARN-2779:

Straight forward patch. Looks good, tx for the testing.

+1, checking this in.

> SystemMetricsPublisher can use Kerberos directly instead of timeline DT
> -----------------------------------------------------------------------
>                 Key: YARN-2779
>                 URL: https://issues.apache.org/jira/browse/YARN-2779
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, timelineserver
>    Affects Versions: 2.6.0
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>            Priority: Critical
>         Attachments: YARN-2779.1.patch
> SystemMetricsPublisher is going to grab a timeline DT in secure mode as well. 
> The timeline DT will expiry after 24h. No DT renewer will handle renewing 
> work for SystemMetricsPublisher, but this has to been handled by itself. In 
> addition, SystemMetricsPublisher should cancel the timeline DT when it is 
> stopped, too.

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