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.ceph.com%2Fpipermail%2Fceph-users-ceph.com%2F2018-July%2F028408.html
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
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