Hi Nicola, A quick look in Ceph repository points to this commit [1] and this part [2] of the documentation. I doubt your cluster is actually performing worse than it did before the update. It's just that now it's letting you know when performance isn't optimal (when queries exceed the default threshold). Regards, Frédéric. [1] https://github.com/ceph/ceph/commit/73b80a9a2c38259346fb646f85fa2ba4dcbb1329 [2] https://docs.ceph.com/en/latest/rados/operations/health-checks/#block-device-stalled-read-alert ----- Le 7 Mar 25, à 17:05, Nicola Mori mori@xxxxxxxxxx a écrit : > Dear Ceph users, > > after upgrading from 19.2.0 to 19.2.1 (via cephadm) my cluster started > showing some warnings never seen before: > > 29 OSD(s) experiencing slow operations in BlueStore > 13 OSD(s) experiencing stalled read in db device of BlueFS > > I searched for these messages but didn't find much. I also noticed that > when browsing the CephFS folders (using the kernel module for the > client) sometimes the client gets stuck for a long time before showing > the folder content; however I don't know if this can be related to the > above warnings. > > I'd need help to understand what's going on and eventually how to > troubleshoot it. > Thanks, > > Nicola > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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