On Fri, May 29, 2026 at 4:05 PM Eugen Block <[email protected]> wrote: > > Hi, > > thanks for your quick reply. No I didn't see any additional output > than the one I shared (invalid argument). I could add debug log level > if necessary.
That error message should have been displayed no matter the log level, so something other than https://tracker.ceph.com/issues/66300 might be involved. What exactly do you mean by "I removed an image from the group snapshot"? Which commands were run there and in what order? > But one more detail, I also tried the rollback directly within the > cephadm shell (so version 19.2.3) with the same result: > > ceph03:~ # cephadm shell > ... > [ceph: root@ceph03 /]# rbd group snap rollback > images/test-servers@20260430_start > Rolling back to group snapshot: 0% complete...failed. > rbd: rollback group to snapshot failed: (22) Invalid argument > > [ceph: root@ceph03 /]# ceph -v > ceph version 19.2.3 (c92aebb279828e9c3c1f5d24613efca272649e62) squid (stable) Can you try appending --debug-ms 1 --debug-rbd 20 to the command (let's stick to this cephadm shell) and attach the output? Thanks, Ilya > > Thanks! > Eugen > > Zitat von Ilya Dryomov <[email protected]>: > > > On Fri, May 29, 2026 at 2:33 PM Eugen Block via ceph-users > > <[email protected]> wrote: > >> > >> Hi, > >> > >> I wanted to rollback a group snapshot on Ubuntu 24.04 (rbd client > >> version 19.2.1), the Ceph cluster version is 19.2.3. The client fails > >> with "invalid argument": > >> > >> controller02:~# rbd --id <user> group snap rollback --pool images > >> --group test-servers --snap 20260430_start > >> Rolling back to group snapshot: 0% complete...failed. > >> rbd: rollback group to snapshot failed: (22) Invalid argument > >> > >> controller02:~# ceph -v > >> ceph version 19.2.1 (9efac4a81335940925dd17dbf407bfd6d3860d28) > >> squid (stable) > >> > >> But running the same command (just as admin not as <user>) on a Ceph > >> node works: > >> > >> ceph03:~ # rbd group snap rollback --pool images --group test-servers > >> --snap 20260430_start > >> Rolling back to group snapshot: 100% complete...done. > >> > >> ceph03:~ # ceph -v > >> ceph version 16.2.13-66-g54799ee0666 > >> (54799ee06669271880ee5fc715f99202002aa371) pacific (stable) > >> > >> > >> What seems to be the issue here is that I removed an image from the > >> group snapshot. I wonder if it could be this bug [0] which is supposed > >> to be fixed in 19.2.0 according to the "Released In" field of the > >> Squid backport tracker [1]. > >> > >> This seems a little inconsistent to me, could someone please clarify? > > > > Hi Eugen, > > > > Did you see "group snapshot membership does not match group membership" > > error message when the rollback command failed with 19.2.1 client? > > > > Thanks, > > > > Ilya > > > _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
