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https://issues.apache.org/jira/browse/YARN-9618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bibin A Chundatt updated YARN-9618:
-----------------------------------
Description:
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 5k*1k events for 5K cluster
# 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.
was:
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.
> 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 5k*1k events for 5K cluster
> # 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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