On Wed, May 6, 2020 at 3:53 PM Marc Roos <M.Roos@xxxxxxxxxxxxxxxxx> wrote: > > > I have been using snapshots on cephfs since luminous, 1xfs and > 1xactivemds and used an rsync on it for backup. > Under luminious I did not encounter any problems with this setup. I > think I was even snapshotting user dirs every 7 days having thousands of > snapshots (which I later heard, is not recommend and one should stick > below 400 or so?) > > When upgrading to nautilus, this snapshot feature was disabled (that is > default in the upgrade). Did not notice nor expected this. When I > enabled again snapshotting. I had problems with the rsync backup. So I > reverted back to the slower ceph-fuse mount. I also brought down the > snapshots to 36, but I am still stuck with "clients failing to respond > to capability release", "clients failing to respond to cache pressure" > and "MDSs report slow requests" > Which is odd, since my use did not change since luminous. > please open tracker tickets for these > All in all is fine, but what I do not like is, that such a thing can > happen between upgrades. > > > > > -----Original Message----- > From: Stolte, Felix [mailto:f.stolte@xxxxxxxxxxxxx] > Sent: 06 May 2020 09:09 > To: ceph-users@xxxxxxx > Subject: Cephfs snapshots in Nautilus > > Hi Folks, > > > > I really like to use snapshots on cephfs, but even on octopus release > snapshots are still marked as an experimental feature. Is anyone using > snapshots in production environments? Which issues did you encounter? Do > I risk a corrupted filesystem or just non-working snapshots? > > > > We run a single fs with one active mds. > > > > Best regards > > Felix > > ------------------------------------------------------------------------ > ------------- > > ------------------------------------------------------------------------ > ------------- > > Forschungszentrum Juelich GmbH > > 52425 Juelich > > Sitz der Gesellschaft: Juelich > > Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 > > Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher > > Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), > > Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt > > ------------------------------------------------------------------------ > ------------- > > ------------------------------------------------------------------------ > ------------- > > > > _______________________________________________ > 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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