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Posted to yarn-dev@hadoop.apache.org by "Bibin A Chundatt (JIRA)" <ji...@apache.org> on 2019/06/11 13:14:00 UTC

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

Bibin A Chundatt created YARN-9618:
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             Summary: 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


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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