RBD-Images are not shown in the Dashbord: Failed to execute RBD [errno 19] error generating diff from snapshot None

[roboticsalign]

Describe the bug

Dear Community,

I hope, you can guide me to solve this error or I can assist in solving a bug: RBD-Images are not shown in my Dashbord.

When accessing the dashboard page (block -> images) no images were listed and the error "Failed to execute RBD [errno 19] error generating diff from snapshot None" is shown. When asking for the list via cli by "rbd ls" the test-image is shown. There are no snapshots listed when asking for "rbd snap ls --all test". Back to the ui: I can create and use a new image via UI, this will be shown via cli, but not in the ui.

The cluster manages several RBD, RGW and Cephfs pools successfully with ~13TiB used capacity out of ~18TiB.

Thanks for this great piece of software!

Environment details

• Ceph-Cluster with 7 Debian 12 nodes and 3 Ubuntu 22.04 nodes at latest patch level.
• Cluster-Version: 18.2.2 (531c0d11a1c5d39fbfe6aa8a521f023abf3bf3e2) reef (stable).
• Error persists since Quincy.
• Orchestrator: cephadm.
• Dashboard is accessed via haproxy, but it's the same behavior when accessing it directly via ip.
• All nodes are updated and rebooted.
• Dashboard was removed and reactivated.

Steps to reproduce

I need your help to find the root cause.

Logs

Health status is ok. I can't find useful logs except the error message:

Problably you have an idea, where to search for further useful logs?

[Madhu-1]

@roboticsalign this is something you need to check with ceph. https://ceph.io/en/community/connect/ is the link to connect with ceph community.

[roboticsalign]

@Madhu-1 thanks for pointing me to the right community.