[jira] [Commented] (YARN-9618) NodeListManager event improvement

["Bibin A Chundatt (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-9618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16861022#comment-16861022 ] 

Bibin A Chundatt commented on YARN-9618:
----------------------------------------

cc:// [~sunil.govind@gmail.com],[~leftnoteasy]

> NodeListManager event improvement
> ---------------------------------
>
>                 Key: YARN-9618
>                 URL: https://issues.apache.org/jira/browse/YARN-9618
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Bibin A Chundatt
>            Priority: Critical
>
> Current implementation nodelistmanager event blocks async dispacher and can cause RM crash and slowing down event processing.
> # Cluster restart with 1K running apps . Each usable event will create 1K events over all events could be 1k*1k events
> # Event processing is blocked till new events are added to queue.
> Solution :
> # Add another async Event handler similar to scheduler.
> # Instead of adding events to dispatcher directly call RMApp event handler.



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