We recently upgraded all our clusters to rocky 9.4 and reef 18.2.4. Two of the clusters show the rgw metrics in the ceph dashboard and the other two don't. I made sure the firewalls were open for ceph-exporter and that Prometheus was gathering the stats on all 4 clusters. For the clusters that are not working, when I do a search on the Prometheus web console at port 9095 on the performance monitoring node using "{instance="rgw1"}, I noticed that the instance_id shows a long number. I did the same search on the clusters that show rgw stats in grafana and they have an instance_id that looks like the drop down in the Grafana dashboard. E.g. "rgw.rgw.rgw1.biewae". So it seems that for some reason, on the clusters that are not working, the ceph-exporter running on the rgw nodes is not pulling the proper instance_id rgw instance. Is there a way to fix the instance_id that ceph-exporter is pulling? I can see this instance id when browsing to the servers http://rgw1:9926/metrics portal. If I run a podman ps, I can see the container running and it has the unique id .biewae showing. I used cephadm to enter the ceph-exporter container on the rgw to see what the logs were saying and I see the same thing repeated: 1 pid path is empty; process metrics won't be fetched for: ceph-client.rgw.rgw.rgw1.biewae.2.94759457265864 Its only the rgw's that show this error in the ceph-exporter log file, the mons and osd nodes show no errors in the log and show up in grafana properly with data. I redeployed ceph-exporter and rgw to the same node in that order, but no change. I did set the default image container to 18.2.4 prior to redeploy cause I ran into that issue as well. Regards, -Brent Existing Clusters: Test: Reef 18.2.0 ( all virtual on nvme ) US Production(HDD): Reef 18.2.4 Cephadm with 11 osd servers, 5 mons, 4 rgw, 2 iscsigw UK Production(HDD): Reef 18.2.4 Cephadm with 20 osd servers, 5 mons, 4 rgw, 2 iscsigw US Production(SSD): Reef 18.2.4 Cephadm with 6 osd servers, 5 mons, 4 rgw UK Production(SSD): Reef 18.2.4 cephadm with 6 osd servers, 5 mons, 4 rgw