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https://issues.apache.org/jira/browse/HDDS-7727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-7727:
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Labels: pull-request-available (was: )
> EC: SCM unregistered event handler for DatanodeCommandCountUpdated
> ------------------------------------------------------------------
>
> Key: HDDS-7727
> URL: https://issues.apache.org/jira/browse/HDDS-7727
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: SCM
> Reporter: Stephen O'Donnell
> Assignee: Attila Doroszlai
> Priority: Major
> Labels: pull-request-available
>
> In SCM I see logs like:
> {code}
> 2023-01-04 23:56:45,346 WARN org.apache.hadoop.hdds.server.events.EventQueue:
> No event handler registered for event TypedEvent{payloadType=DatanodeDetails,
> name='Datanode_Command_Queue_Updated'}
> {code}
> It seems an event handler was not registered correctly for the new events
> which are getting produced, which causes noise in the logs and perhaps the
> messages to build up in the queue and may result in memory issues.
> This event was created to notify RM when the queue is updated via a heartbeat
> so it can adjust replication load limits. The handler
> `DatanodeCommandCountUpdatedHandler` was for this purpose, but perhaps it is
> not wired up correctly.
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