[Users] Live storage migration snapshot removal (fails)

[Sander Grendelman]

Done: https://bugzilla.redhat.com/show_bug.cgi?id=1029069

On Mon, Nov 11, 2013 at 4:02 PM, Dan Kenigsberg <danken at redhat.com> wrote:
> On Mon, Nov 11, 2013 at 03:11:22PM +0100, Sander Grendelman wrote:
>> I can open a bug on this.
>>
>> Should I file it for the entire "snapshot removal fails"-problem or
>> just this error?
>
> "live storage migration snapshot removal fails due to unexpected
> qemu-img output", followed by your analisys below, sounds great to me.
>
>>
>>
>> I've looked at the parsing error and the problem seems to be that the
>> qemuImg.check() function expects a qemu-img version that outputs a
>> string like: "Image end offset: 262144".
>>
>> The only version I could find that does that is the one in the F19 virt-preview
>> repository. Stock F19 qemu-img doesn't have this output. Nor do the stock EL6
>> or qemu-img-rhev EL6 versions.
>>
>> The only function that calls qemuImg.check is blockVolume.shrinkToOptimalSize()
>> this function needs (and uses) the parsed offset to shrink the LV containing the
>> qcow2 image.