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https://issues.apache.org/jira/browse/YARN-8589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16787548#comment-16787548
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Prabhu Joseph commented on YARN-8589:
-------------------------------------

[~Rakesh_Shah] Did you try with below query as well

{code}
curl  http://<ATS Server>:8188/ws/v1/timeline/HIVE_QUERY_ID
{code}

> ATS TimelineACLsManager checkAccess is slow
> -------------------------------------------
>
>                 Key: YARN-8589
>                 URL: https://issues.apache.org/jira/browse/YARN-8589
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>    Affects Versions: 2.7.3
>            Reporter: Prabhu Joseph
>            Priority: Major
>
> ATS rest api is very slow when there are more than 1lakh entries if 
> yarn.acl.enable is set to true as TimelineACLsManager has to check access for 
> every entries. We can;t disable yarn.acl.enable as all the YARN ACLs uses the 
> same config. We can have a separate config to provide read access to the ATS 
> Entries.
> {code}
> curl  http://<ATS Server>:8188/ws/v1/timeline/HIVE_QUERY_ID
> {code}



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