Hi Conrad, On Wed, May 17, 2023 at 2:41 PM Conrad Hoffmann <ch@xxxxxxxxxxxxx> wrote: > > On 5/17/23 18:07, Stefan Kooman wrote: > > On 5/17/23 17:29, Conrad Hoffmann wrote: > >> Hi all, > >> > >> I'm having difficulties removing a CephFS volume that I set up for > >> testing. I've been through this with RBDs, so I do know about > >> `mon_allow_pool_delete`. However, it doesn't help in this case. > >> > >> It is a cluster with 3 monitors. You can find a console log of me > >> verifying that `mon_allow_pool_delete` is indeed true on all monitors > >> but still fail to remove the volume here: > > > > That's not just a volume, that's the whole filesystem. If that's what > > you want to do ... I see the MDS daemon is still up. IIRC there should > > be no MDS running if you want to delete the fs. Can you stop the MDS > > daemon and try again. > > That sort of got me in the right direction, but I am still confused. I > don't think I understand the difference between a volume and a > filesystem. I think I followed [1] when I set this up. It says to use > `ceph fs volume create`. I went ahead and ran it again, and it certainly > creates something that shows up in both `ceph fs ls` and `ceph fs volume > ls`. Also, [2] says "FS volumes, an abstraction for CephFS file > systems", so I guess they are the same thing? Yes. > At any rate, shutting down the MDS did _not_ help with `ceph fs volume > rm` (it failed with the same error message), but it _did_ help with > `ceph fs rm`, which then worked. Hard to make sense of, but I am pretty > sure the error message I was seeing is pretty non-sensical in that > context. Under what circumstance will `ceph fs volume rm` even work if > it fails to delete a volume I just created? `fs rm` just removes the file system from the monitor maps. You still have the data pools lying around which is what the `volume rm` command is complaining about. Try: ceph config set global mon_allow_pool_delete true ceph fs volume rm ... -- Patrick Donnelly, Ph.D. He / Him / His Red Hat Partner Engineer IBM, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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