Ethan Rose created HDDS-11509:
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             Summary: Logging improvements for deletion services
                 Key: HDDS-11509
                 URL: https://issues.apache.org/jira/browse/HDDS-11509
             Project: Apache Ozone
          Issue Type: Sub-task
          Components: OM, Ozone Datanode, SCM
            Reporter: Ethan Rose


All Ozone components involved in background deletion should follow consistent 
patterns with their logging:
* At the end of each run, and INFO log should display how many items were 
processed, what the current limit of items per run is, and how long it took.
** If the run time of the iteration exceeded the configured interval, the 
message should highlight this and be elevated to WARN.
*** This should also log the config keys that can remedy this for batch size, 
interval, or number of threads.
* Either during or after each run, a DEBUG log should indicate each individual 
item that was processed.

These changes should be applied uniformly across the following background 
services, which may be split into separate sub-tasks:
* OM open key cleanup
* OM key delete
* OM directory delete
* SCM block delete
* Datanode block delete



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