Have you tried with debug logs? Has it worked with live snapshots before for other instances or did it never work and all snapshots were "cold"? Zitat von Parsa Aminian <p.aminian.server@gmail.com>:

Hi kolla-ansible victoria version with ceph backend without volume

On Sun, Jun 12, 2022 at 12:45 PM Eugen Block <eblock@nde.ag> wrote:

...

Hi,

can you share more details about your environment? Which openstack version is it? What is the storage backend? In earlier releases there was an option:

#disable_libvirt_livesnapshot = false

but this option has been deprecated. But if you're on an older version that could explain it.

Zitat von Parsa Aminian <p.aminian.server@gmail.com>:

...

When I snapshot from the instance , server will gone away and its not reachable until the snapshot is complete here is the logs : 25c8d676-e20a-4238-a45c-d51daa62b941] instance snapshotting 2022-06-12 09:42:34.755 7 INFO nova.compute.manager [req-786946b1-3d22-489c-bf4d-8b1375b09ecb - - - - -] [instance: 25c8d676-e20a-4238-a45c-d51daa62b941] VM Paused (Lifecycle Event) 2022-06-12 09:42:34.995 7 INFO nova.compute.manager [req-786946b1-3d22-489c-bf4d-8b1375b09ecb - - - - -] [instance: 25c8d676-e20a-4238-a45c-d51daa62b941] During sync_power_state the instance has a pending task (image_pending_upload). Skip. 2022-06-12 09:42:57.749 7 INFO nova.compute.manager [-] [instance: 25c8d676-e20a-4238-a45c-d51daa62b941] VM Stopped (Lifecycle Event) 2022-06-12 09:43:06.102 7 INFO nova.virt.libvirt.driver [req-e79e4177-4712-4795-91da-853bc524fac0 93fb420b3c604d4fae408b81135b58e9 ef940663426b4c87a751afaf13b758e0 - default default] [instance: 25c8d676-e20a-4238-a45c-d51daa62b941] Snapshot extracted, beginning image upload 2022-06-12 09:43:08.778 7 INFO nova.compute.manager [req-786946b1-3d22-489c-bf4d-8b1375b09ecb - - - - -] [instance: 25c8d676-e20a-4238-a45c-d51daa62b941] VM Started (Lifecycle Event)