If I remembered correctly, there exists option to control it. Now I don't have env to verify, but you can look up via this: ceph --show-config | grep concurrent a option called "rbd_*concurrent_ops" will cover it. On Wed, Aug 13, 2014 at 6:01 PM, Dietmar Maurer <dietmar at proxmox.com> wrote: > Hi all, > > > > I just noticed that a snapshot rollback produces very high load on small > clusters. Seems > > all OSDs copies data at full speed, and client access speed drops from > 480MB/s to 10MB/s. > > > > Is there a way to limit rollback speed/priority? > > > > > > > > > > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Best Regards, Wheat