Daryn Sharp commented on YARN-2971:

I think it's because the job cannot assume that the timeline server matches the 
cluster's config.  I think the patch looks fine other than it should be using 
{{SecurityUtil.getTokenServiceAddr}} instead of directly accessing the token 

> RM uses conf instead of token service address to renew timeline delegation 
> tokens
> ---------------------------------------------------------------------------------
>                 Key: YARN-2971
>                 URL: https://issues.apache.org/jira/browse/YARN-2971
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: 2.6.0
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>         Attachments: YARN-2971-v1.patch
> The TimelineClientImpl renewDelegationToken uses the incorrect webaddress to 
> renew Timeline DelegationTokens. It should read the service address out of 
> the token to renew the delegation token.

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