openstack team mailing list archive

[Boris Filippov <bfilippov@xxxxxxxxxxxxxxxx>]

Your instance directory is shared between compute nodes?
Similar issue was fixed for folsom-rc1
https://review.openstack.org/#/c/12024/
https://bugs.launchpad.net/nova/+bug/1014227


2012/9/24 Razique Mahroua <razique.mahroua@xxxxxxxxx>

> Here is what I found
> http://comments.gmane.org/gmane.comp.emulators.qemu/153254
> http://osdir.com/ml/qemu-devel/2012-05/msg04234.html
>
> What do you think ?
>
> *Nuage & Co - Razique Mahroua** *
> razique.mahroua@xxxxxxxxx
>
>
> Le 24 sept. 2012 à 10:43, Wangpan <hzwangpan@xxxxxxxxxxxxxxxx> a écrit :
>
> qemu-img check -f qcow2 test.qcow2
> No errors were found on the image.
>
> 2012-09-24
> ------------------------------
> Wangpan
> ------------------------------
> *发件人：*Razique Mahroua
> *发送时间：*2012-09-24 16:30
> *主题：*Re: Re: [Openstack] [Nova] Got 'qemu-img: error while writing sector
> 634880: Input/output error' in _create_image
> *收件人：*"Wangpan"<hzwangpan@xxxxxxxxxxxxxxxx>
> *抄送：*"openstack"<openstack@xxxxxxxxxxxxxxxxxxx>
>
> hi,
> what about a
> qemu-img check -f qcow2 test.qcow2
>
>
> *Nuage & Co - Razique Mahroua** *
> razique.mahroua@xxxxxxxxx
>
> <NUAGECO-LOGO-Fblan_petit(1).jpg>
>
> Le 24 sept. 2012 à 10:19, "Wangpan"<hzwangpan@xxxxxxxxxxxxxxxx> a écrit :
>
> Thanks for your attention!
>
> - disk full  ----# I believe there is enough space, because I have tried
> to boot serveral instances after this error with the same image, they are
> all booted successfully.
> - permission issues    ----# Not this reason, too. explain as above.
>
> I still believe this is a race problem, if we convert to image from qcow2
> to raw at a short interval, one of the convertion may fail,
> I have verified this by running two same commands continuously such as:
> qemu-img convert -f qcow2 -O raw  test.qcow2 test.part &
> and one of them give me the same error:
> qemu-img: error while writing sector 1052672: Input/output error
>
>
>
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