Hi, I am trying to get detailed information about the RBD images used by OpenStack (r/w operations, throughput, ..). On the mailing list I found instructions that this is possible using an admin socket of the client [1]. So I enabled the socket on one of my hosts according to [2]. The manual states that the socket should be there once I restart the VM. At some point it actually does appear, but it vanishes within a second or two. If I keep monitoring the directory I see it appearing for roughly 1-2 seconds per minute. The socket looks like this: root@compute01:/var/run/ceph/guests# ls -l srwxr-xr-x 1 cinder cinder  0 Aug 29 17:54 ceph-client.cinder.2772108.94507439454256.asok Does anyone know what I am doing wrong? Or is there another way to get information about which RBD image is causing the most load on a cluster? Regards, Georg [1] http://webcache.googleusercontent.com/search?q=cache%3Ahttp%3A%2F%2Flists.ce... By the way, the mail archive from before 2019 seems to be inaccessible. Using google cache as a fallback. [2] https://docs.ceph.com/docs/mimic/rbd/rbd-openstack/#configuring-nova