Zhijie Shen commented on YARN-3287:

One concern: moving ugi computation into init will make the client only work 
for the user who inits it. It cannot be shared with the other users.

> TimelineClient kerberos authentication failure uses wrong login context.
> ------------------------------------------------------------------------
>                 Key: YARN-3287
>                 URL: https://issues.apache.org/jira/browse/YARN-3287
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>            Assignee: Daryn Sharp
>         Attachments: timeline.patch
> TimelineClientImpl:doPosting is not wrapped in a doAs, which can cause 
> failure for yarn clients to create timeline domains during job submission.

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