Hi folks,
since some month I have an issue with snapshot removals (I have storware
vprotect backup system, heavily using snapshots).
After some time spent on a bugzilla
(https://bugzilla.redhat.com/show_bug.cgi?id=1948599) we discovered that
my issue is not depending on that bug :-(

So they pointed me here again.

Briefly: sometime snapshot removal fails, leaving snapshot in illegal
state. Trying to remove again (via ovirt UI) keeps failing and doesn't
solve. The only way to rebuild a consistent situation is live migrating
affected disk to another storage domain; after moving the disk, snapshot
is no more marked illegal and then I can remove it. You can imagine this
is a bit tricky, specially for large disks.

In my logs I can find:

2022-08-29 09:17:11,890+02 ERROR
[org.ovirt.engine.core.bll.MergeStatusCommand]
(EE-ManagedExecutorService-commandCoordinator-Thread-1)
[0eced56f-689d-422b-b15c-20b824377b08] Failed to live merge. Top volume
f8f84b1c-53ab-4c99-a01d-743ed3d7859b is still in qemu chain
[0ea89fbc-d39a-48ff-aa2b-0381d79d7714,
55bb387f-01a6-41b6-b585-4bcaf2ea5e32, f8f84b1c-53ab-4c99-a01d-743ed3d7859b]


My setup is ovirt-engine-4.5.2.4-1.el8.noarch, with hypervisors based on
oVirt Node 4.5.2 (vdsm-4.50.2.2-1.el8).

Thank you in advance.

Regards,
gc


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