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https://issues.apache.org/jira/browse/HDDS-8746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-8746:
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Labels: pull-request-available (was: )
> Add metrics to ReplicationSupervisor for task count and max stream
> ------------------------------------------------------------------
>
> Key: HDDS-8746
> URL: https://issues.apache.org/jira/browse/HDDS-8746
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: SCM
> Reporter: Stephen O'Donnell
> Assignee: Stephen O'Donnell
> Priority: Major
> Labels: pull-request-available
>
> To give added visibility into the Replication Queue on a datanode, this Jira
> adds some extra metrics to give visibility into the count of "normal
> priority" Replication and Reconstruction tasks, along with the current
> maxStreams setting, which is automatically adjusted when the node moves into
> decommission.
> This was tested manually in Docker compose by sampling the JMX output. Sample
> output:
> {code}
> "name" : "Hadoop:service=HddsDatanode,name=ReplicationSupervisorMetrics",
> "modelerType" : "ReplicationSupervisorMetrics",
> "tag.Hostname" : "b297306fcf0f",
> "numInFlightReplications" : 5,
> "numQueuedReplications" : 4,
> "numRequestedReplications" : 1,
> "numTimeoutReplications" : 0,
> "numSkippedReplications" : 0,
> "maxReplicationStreams" : 1, ** newly added
> "numInflightECReconstructionCoordinatorTask" : 5 ** newly added
> "name" : "Hadoop:service=HddsDatanode,name=ReplicationSupervisorMetrics",
> "modelerType" : "ReplicationSupervisorMetrics",
> "tag.Hostname" : "b297306fcf0f",
> "numInFlightReplications" : 1,
> "numQueuedReplications" : 0,
> "numRequestedReplications" : 6,
> "numTimeoutReplications" : 0,
> "numSkippedReplications" : 0,
> "maxReplicationStreams" : 1, ** newly added
> "numInflightReplicationTask" : 1, ** newly added
> "numInflightECReconstructionCoordinatorTask" : 0 ** newly added
> {code}
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