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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.
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?
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
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