On Fri, Jun 28, 2019 at 5:41 PM Jorge Garcia <jgarcia@xxxxxxxxxxxx> wrote: > > Ok, actually, the problem was somebody writing to the filesystem. So I moved their files and got to 0 objects. But then I tried to remove the original data pool and got an error: > > # ceph fs rm_data_pool cephfs cephfs-data > Error EINVAL: cannot remove default data pool > > So it seems I will never be able to remove the original data pool. I could leave it there as a ghost pool, which is not optimal, but I guess there's currently not a better option. Yeah; CephFS writes its backtrace pointers (for inode-based lookups) to the default data pool. Unfortunately we need all of those to live in one known pool, and CephFS doesn't have a way to migrate them. -Greg > > On 6/28/19 4:04 PM, Patrick Hein wrote: > > Afaik MDS doesn't delete the objects immediately but defer it for later. If you check that again now, how many objects does it report? > > Jorge Garcia <jgarcia@xxxxxxxxxxxx> schrieb am Fr., 28. Juni 2019, 23:16: >> >> >> On 6/28/19 9:02 AM, Marc Roos wrote: >> > 3. When everything is copied-removed, you should end up with an empty >> > datapool with zero objects. >> >> I copied the data to a new directory and then removed the data from the >> old directory, but df still reports some objects in the old pool (not >> zero). Is there a way to track down what's still in the old pool, and >> how to delete it? >> >> Before delete: >> >> # ceph df >> GLOBAL: >> SIZE AVAIL RAW USED %RAW USED >> 392 TiB 389 TiB 3.3 TiB 0.83 >> POOLS: >> NAME ID USED %USED MAX AVAIL OBJECTS >> cephfs-meta 6 17 MiB 0 123 TiB 27 >> cephfs-data 7 763 GiB 0.60 123 TiB 195233 >> new-ec-pool 8 641 GiB 0.25 245 TiB 163991 >> >> After delete: >> >> # ceph df >> GLOBAL: >> SIZE AVAIL RAW USED %RAW USED >> 392 TiB 391 TiB 1.2 TiB 0.32 >> POOLS: >> NAME ID USED %USED MAX AVAIL OBJECTS >> cephfs-meta 6 26 MiB 0 124 TiB 29 >> cephfs-data 7 83 GiB 0.07 124 TiB 21175 >> new-ec-pool 8 641 GiB 0.25 247 TiB 163991 >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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