Haibo Chen commented on YARN-7835:


> [Atsv2] Race condition in NM while publishing events if second attempt 
> launched on same node
> --------------------------------------------------------------------------------------------
>                 Key: YARN-7835
>                 URL: https://issues.apache.org/jira/browse/YARN-7835
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>            Priority: Critical
>         Attachments: YARN-7835.001.patch, YARN-7835.002.patch, 
> YARN-7835.003.patch, YARN-7835.004.patch
> It is observed race condition that if master container is killed for some 
> reason and launched on same node then NMTimelinePublisher doesn't add 
> timelineClient. But once completed container for 1st attempt has come then 
> NMTimelinePublisher removes the timelineClient. 
>  It causes all subsequent event publishing from different client fails to 
> publish with exception Application is not found. !

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