[jira] [Commented] (YARN-8303) YarnClient should contact TimelineReader for application/attempt/container report

["Abhishek Modi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-8303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575819#comment-16575819 ] 

Abhishek Modi commented on YARN-8303:
-------------------------------------

[~rohithsharma] [~vrushalic] I have submitted a POC patch for this just for validation of approach. Could you please review it. Once we have finalized on the approach, I will add a proper patch. 

> YarnClient should contact TimelineReader for application/attempt/container report
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-8303
>                 URL: https://issues.apache.org/jira/browse/YARN-8303
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Rohith Sharma K S
>            Assignee: Abhishek Modi
>            Priority: Critical
>         Attachments: YARN-8303.poc.patch
>
>
> YarnClient get app/attempt/container information from RM. If RM doesn't have then queried to ahsClient. When ATSv2 is only enabled, yarnClient will result empty. 
> YarnClient is used by many users which result in empty information for app/attempt/container report. 
> Proposal is to have adapter from yarn client so that app/attempt/container reports can be generated from AHSv2Client which does REST API to TimelineReader and get the entity and convert it into app/attempt/container report.



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