Getting cephadm "stderr:Inferring config" every minute in log - for a monitor that doesn't exist and shouldn't exist

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Hi- after the upgrade to 16.2.6, I am now seeing this error:

9/20/21 10:45:00 AM[ERR]cephadm exited with an error code: 1, stderr:Inferring config /var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1.robeckert.us/config ERROR: [Errno 2] No such file or directory: '/var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1.robeckert.us/config' Traceback (most recent call last): File "/usr/share/ceph/mgr/cephadm/serve.py", line 1366, in _remote_connection yield (conn, connr) File "/usr/share/ceph/mgr/cephadm/serve.py", line 1263, in _run_cephadm code, '\n'.join(err))) orchestrator._interface.OrchestratorError: cephadm exited with an error code: 1, stderr:Inferring config /var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1.robeckert.us/config ERROR: [Errno 2] No such file or directory: '/var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1.robeckert.us/config'

The rhel1 server has a monitor under /var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1 , and it is up and active.  If I copy the /var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1 to /var/lib/ceph/fe3a7cb0-69ca-11eb-8d45-c86000d08867/mon.rhel1.robeckert.us the error clears, then cephadm removes the folder with the domain name, and the error starts showing up in the log again.

After a few minutes, I get the all clear:

9/20/21 11:00:00 AM[INF]overall HEALTH_OK

9/20/21 10:58:38 AM[INF]Removing key for mon.

9/20/21 10:58:37 AM[INF]Removing daemon mon.rhel1.robeckert.us from rhel1.robeckert.us

9/20/21 10:58:37 AM[INF]Removing monitor rhel1.robeckert.us from monmap...

9/20/21 10:58:37 AM[INF]Safe to remove mon.rhel1.robeckert.us: not in monmap (['rhel1', 'story', 'cube'])

9/20/21 10:52:21 AM[INF]Cluster is now healthy

9/20/21 10:52:21 AM[INF]Health check cleared: CEPHADM_REFRESH_FAILED (was: failed to probe daemons or devices)

9/20/21 10:51:15 AM


I checked all of the configurations and can't find any reason it wants the monitor with the domain.

But then the errors start up again - I haven't found any messages before they start up, I am going to monitor more closely.
This doesn't seem to affect any functionality, just lots of messages in the log.

Thanks,
Rob

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