[jira] [Created] (HDDS-9204) Reduce log level of PipelinePlacementPolicy failed to create pipeline message

["Stephen O'Donnell (Jira)" <ji...@apache.org>]

Stephen O'Donnell created HDDS-9204:
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             Summary: Reduce log level of PipelinePlacementPolicy failed to create pipeline message
                 Key: HDDS-9204
                 URL: https://issues.apache.org/jira/browse/HDDS-9204
             Project: Apache Ozone
          Issue Type: Improvement
            Reporter: Stephen O'Donnell
            Assignee: Stephen O'Donnell


Under normal circumstances, a log like this is seen frequently in the SCM log:

{code}
2023-08-23 10:41:06,087 [main] WARN  pipeline.PipelinePlacementPolicy (PipelinePlacementPolicy.java:filterViableNodes(166)) - Pipeline creation failed due to no sufficient healthy datanodes. Required 3. Found 2. Excluded 14.
{code}

This happens regularly, as the background pipeline creator thread attempts to fill all datanodes with pipelines. When all the limits have been reached the above scenario legitimately happens and prints the warning to the logs.

We should move this message to debug, as its not really a warning as its a normal occurrence.



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