On Mon, Apr 17, 2023 at 2:01 PM Reto Gysi <rlgysi@xxxxxxxxx> wrote:
>
> Dear Ceph Users,
>
> After upgrading from version 17.2.5 to 17.2.6 I no longer seem to be able
> to create snapshots
> of images that have an erasure coded datapool.
>
> root@zephir:~# rbd snap create ceph-dev@backup_20230417
> Creating snap: 10% complete...failed.
> rbd: failed to create snapshot: (95) Operation not supported
>
>
> root@zephir:~# rbd info ceph-dev
> rbd image 'ceph-dev':
> size 10 GiB in 2560 objects
> order 22 (4 MiB objects)
> snapshot_count: 11
> id: d2f3d287f13c7b
> data_pool: ecpool_hdd
> block_name_prefix: rbd_data.7.d2f3d287f13c7b
> format: 2
> features: layering, exclusive-lock, object-map, fast-diff,
> deep-flatten, data-pool
> op_features:
> flags:
> create_timestamp: Wed Nov 23 17:01:03 2022
> access_timestamp: Sun Apr 16 17:20:58 2023
> modify_timestamp: Wed Nov 23 17:01:03 2022
> root@zephir:~#
>
> Before the upgrade I was able to create snapshots of this pool:
>
> SNAPID NAME SIZE PROTECTED
> TIMESTAMP
> 1538 ceph-dev_2023-03-05T02:00:09.030+01:00 10 GiB Sun Mar
> 5 02:00:14 2023
> 1545 ceph-dev_2023-03-06T02:00:03.832+01:00 10 GiB Mon Mar
> 6 02:00:05 2023
> 1903 ceph-dev_2023-04-05T03:22:01.315+02:00 10 GiB Wed Apr
> 5 03:22:02 2023
> 1909 ceph-dev_2023-04-05T03:35:56.748+02:00 10 GiB Wed Apr
> 5 03:35:57 2023
> 1915 ceph-dev_2023-04-05T03:37:23.778+02:00 10 GiB Wed Apr
> 5 03:37:24 2023
> 1930 ceph-dev_2023-04-06T02:00:06.159+02:00 10 GiB Thu Apr
> 6 02:00:07 2023
> 1940 ceph-dev_2023-04-07T02:00:05.913+02:00 10 GiB Fri Apr
> 7 02:00:06 2023
> 1952 ceph-dev_2023-04-08T02:00:06.534+02:00 10 GiB Sat Apr
> 8 02:00:07 2023
> 1964 ceph-dev_2023-04-09T02:00:06.430+02:00 10 GiB Sun Apr
> 9 02:00:07 2023
> 2003 ceph-dev_2023-04-11T02:00:09.750+02:00 10 GiB Tue Apr
> 11 02:00:10 2023
> 2014 ceph-dev_2023-04-12T02:00:09.528+02:00 10 GiB Wed Apr
> 12 02:00:10 2023
> root@zephir:~#
>
> I have looked through the release notes of 17.2.6 but couldn't find
> anything obvious regarding rbd and ec pools.
>
> Does anyone else have this problem?
>
> Do I need to change some config setting, or was this feature disabled or is
> it a bug?
Hi Reto,
Nothing was disabled and no config changes are expected. This should just
work.
What is the output of "rbd status" for that image?
Can you reproduce with "--debug-ms 1 --debug-rbd 20" appended to "rbd
snap create" command and attach a file with the output?
Thanks,
Ilya
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