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https://issues.apache.org/jira/browse/YARN-8254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16466553#comment-16466553
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Naganarasimha G R commented on YARN-8254:
-----------------------------------------

Thanks [~Prabhu Joseph] for raising this issue, it would be a nice thing to 
have. But if you could give more info on role of YARN and the role of 
application(AM) in doing the above would be more helpful.

> dynamically change log levels for YARN Jobs
> -------------------------------------------
>
>                 Key: YARN-8254
>                 URL: https://issues.apache.org/jira/browse/YARN-8254
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: yarn
>    Affects Versions: 2.7.3
>            Reporter: Prabhu Joseph
>            Priority: Major
>              Labels: supportability
>
> Currently the Log Levels for Daemons can be dynamically changed. It will be 
> easier while debugging to have same for YARN Jobs. Client can setLogLevel to 
> ApplicationMaster which can set it for all the containers.



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