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https://issues.apache.org/jira/browse/TEZ-2205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14366076#comment-14366076
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Hitesh Shah commented on TEZ-2205:
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Also, firstly yarn.timeline-service.enabled is a YARN config and should not be 
respected by Tez. Now, if it is set to false, why is the yarn client/timeline 
client trying to even connect to ATS or trying to obtain the token? Shouldn't 
that be a bug in YARN?  

> Tez still tries to post to ATS when yarn.timeline-service.enabled=false
> -----------------------------------------------------------------------
>
>                 Key: TEZ-2205
>                 URL: https://issues.apache.org/jira/browse/TEZ-2205
>             Project: Apache Tez
>          Issue Type: Sub-task
>    Affects Versions: 0.6.1
>            Reporter: Chang Li
>            Assignee: Chang Li
>
> when set yarn.timeline-service.enabled=false, Tez still tries posting to ATS, 
> but hits error as token is not found. Does not fail the job because of the 
> fix to not fail job when there is error posting to ATS. But it should not be 
> trying to post to ATS in the first place.



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