Re: Ceph Snapshot Children not exists / children relation broken

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On Fri, Jul 31, 2020 at 8:03 AM Torsten Ennenbach
<tennenbach@xxxxxxxxxxxx> wrote:
>
> Hey Jason
> Nope it is not (Anymore)
>
> Even if it is in the trash it can’t be deleted (same error like mentioned earlier)

I was asking about the child image (f907bc6b8b4567). What does "rados
-p rbd listomapvals rbd_header.f907bc6b8b4567" return?

> I tried to move this to trash as a solution, but this aint working also.
>
>
> Best regards
> Torsten
>
>
> > Am 31.07.2020 um 13:58 schrieb Jason Dillaman <jdillama@xxxxxxxxxx>:
> >
> > On Fri, Jul 31, 2020 at 3:37 AM Torsten Ennenbach
> > <tennenbach@xxxxxxxxxxxx <mailto:tennenbach@xxxxxxxxxxxx>> wrote:
> >>
> >> 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?
> >
> > Is the image in the trash? "rbd trash ls --all --long"
> >
> >> 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
> >> _______________________________________________
> >> ceph-users mailing list -- ceph-users@xxxxxxx <mailto:ceph-users@xxxxxxx>
> >> To unsubscribe send an email to ceph-users-leave@xxxxxxx <mailto:ceph-users-leave@xxxxxxx>
> >>
> >
> >
> > --
> > Jason
>
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-- 
Jason
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