Hi all, we have a 10 nodes cluster used for S3 with radosgw. Initially the cluster has been installed with ceph-ansible and was at version 18. Some months ago an external consultant converted to cephadm and upgrade to 19.2.3 Almost everything is ok but we have some issues with dashboard and grafana graphs. In Dashboard → Cluster → OSDs → Overall Performance we can't see "OSD Read Latencies" and "OSD Write Latencies" graphs, they have red triangle icons with this error popup: "execution: found duplicate series for the match group {ceph_daemon=\"osd.0\"} on the right hand-side of the operation: [{ceph_daemon=\"osd.0\", cluster=\"6e06959e-3ef3-4017-a467-b1d482bc7269\", instance=\"ceph_cluster\", job=\"ceph\"}, {ceph_daemon=\"osd.0\", cluster=\"6e06959e-3ef3-4017-a467-b1d482bc7269\", instance=\"node1\", job=\"ceph-exporter\"}];many-to-many matching not allowed: matching labels must be unique on one side" After some my investigations I found out there are some duplicate metrics in prometheus db, one coming from ceph (I think mgr module?) and one from ceph-exporter, for example  this metric: ceph_osd_op_r_latency_sum be there with two distinct values with different job labels (values are exactly the same) Every node has a running ceph-exporter container and there are 3 nodes with mgr services. I have tried to modify grafana dashboard queries to use only one of two metrics specifying the job label but they are readonly (I can make a copy and modifying it that works, but i don't know how to use this new grafana dashboard in ceph dashboard). I have read from ceph documentation and I understand ceph-exporter is no longer required but on another ceph cluster recently set up with cephadm version 19.2.3 from the very start, ceph-exporter container are presents on every nodes, so I'm not sure if I should keep ceph-exporter containers running Which is the right way of extract these metrics from ceph? Thank you all Francesco Usseglio