11:53 a.m.
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Hi Ala,=0A=
=0A=
Von: Adam Litke [alitke(a)redhat.com]=0A=
Gesendet: Freitag, 30. September 2016 15:54=0A=
An: Markus Stockhausen=0A=
Cc: Ovirt Users; Ala Hino; Nir Soffer=0A=
Betreff: Re: [ovirt-users] Cleanup illegal snapshot=0A=
=0A=
On 30/09/16 05:47 +0000, Markus Stockhausen wrote:=0A=
>Hi,=0A=
>=0A=
>if a OVirt snapshot is illegal we might have 2 situations.=0A=
>=0A=
>1) qemu is still using it - lsof shows qemu access to the base raw and t=
he=0A=
>delta qcow2 file. -> E.g. a previous live merge failed. In the
past we=
=0A=
>successfully solved that situation by setting the status of the
delta im=
age=0A=
>in the database to OK.=0A=
>=0A=
>2) qemu is no longer using it. lsof shows qemu access only to the the ba=
se=0A=
>raw file -> E.g. a previous live merge succeded in qemu but
Ovirt did no=
t=0A=
>recognize.=0A=
>=0A=
>How to clean up the 2nd situation?=0A=
=0A=
It seems that you will have to first clean up the engine database to=0A=
remove references to the snapshot that no longer exists. Then you=0A=
will need to remove the unused qcow2 volume.=0A=
=0A=
Unfortunately I cannot provide safe instructions for modifying the=0A=
database but maybe Ala Hino (added to CC:) will be able to help with=0A=
that.=0A=
=0A=
Do you have some tip for me?=0A=
=0A=
=0A=
One you have fixed the DB you should be able to delete the volume=0A=
using a vdsm verb on the SPM host:=0A=
=0A=
# vdsClient -s 0 deleteVolume <sdUUID> <spUUID> <imgUUID>
<volUUID>=0A=
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