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https://issues.apache.org/jira/browse/YARN-9831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17081250#comment-17081250
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Bilwa S T commented on YARN-9831:
---------------------------------

Hi [~maniraj...@gmail.com] 
As nodeSet is ConcurrentHashSet there wont be any inconsistent data. It will 
take care of synchronization.

> NMTokenSecretManagerInRM#createNMToken blocks ApplicationMasterService 
> allocate flow
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-9831
>                 URL: https://issues.apache.org/jira/browse/YARN-9831
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Bibin Chundatt
>            Assignee: Bilwa S T
>            Priority: Critical
>         Attachments: YARN-9831.001.patch, YARN-9831.002.patch
>
>
> Currently attempt's NMToken cannot be generated independently. 
> Each attempts allocate flow blocks each other. We should improve the same



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