31 Jul
2020
31 Jul
'20
10:37 a.m.
Hello all,
I`ve a problem with an undeletable Image.
Let my try to explain.
There is a storage with a Snapshot, and the snapshot thinks he has a Children:
rbd snap unprotect delete-me-please@995cc2e3-c636-4c43-87c3-dbc729173c09
2020-07-30 09:25:08.492 7f15f77fe700 -1 librbd::SnapshotUnprotectRequest: cannot
unprotect: at least 1 child(ren) [f907bc6b8b4567] in pool 'rbd'
2020-07-30 09:25:08.492 7f15f77fe700 -1 librbd::SnapshotUnprotectRequest: encountered
error: (16) Device or resource busy
2020-07-30 09:25:08.492 7f15f77fe700 -1 librbd::SnapshotUnprotectRequest: 0x559ca6dd7b80
should_complete_error: ret_val=-16
2020-07-30 09:25:08.496 7f15f77fe700 -1 librbd::SnapshotUnprotectRequest: 0x559ca6dd7b80
should_complete_error: ret_val=-16rbd: unprotecting snap failed:
(16) Device or resource busy
rbd children delete-me-please@995cc2e3-c636-4c43-87c3-dbc729173c09
2020-07-30 09:19:36.650 7f39563deb00 -1 librbd::api::Image: list_descendants: error
looking up name for image id f907bc6b8b4567 in pool rbd
rbd: listing children failed: (2) No such file or directory
So i am not able to unprotect and delete the Snapshot.
Is there a way to fix this issue?
I know this happens if deep-flatten is not enabled, and this is the root cause I think.
We`ve activated this feature now but this s artifact from a time where it was disabled.
Best regards & thx for your help.
Torsten