Stephen O'Donnell created HDDS-7402:
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Summary: Adapt CommandQueue to track the count of each queued
command type
Key: HDDS-7402
URL: https://issues.apache.org/jira/browse/HDDS-7402
Project: Apache Ozone
Issue Type: Improvement
Components: SCM
Reporter: Stephen O'Donnell
Assignee: Stephen O'Donnell
Currently, all commands queued for a datanode are stored in an ArrayList, which
is sent to the DN on each heartbeat.
In order to limit the number of commands queued on a DN at any time, it would
be useful to be able to query the current queued count of each command type,
allowing Replication Manager, for example, to stop sending more work to the DN
until it has free capacity.
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