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On Tue, Mar 7, 2017 at 10:28 PM, Jeffrey Zhang <zhang.lei.fly at gmail.com>
wrote:

> Kolla deploy ubuntu gate is red now. here is the related bug[0].
>
> libvirt failed to access the console.log file when booting instance. After
> made some debugging, i got following.
>
>
Jeffrey,  This is likely fixed in ocata-proposed and should be promoted to
ocata-updates soon after testing completes.
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1667033.

Corey


# how console.log works
> nova create a empty console.log with nova:nova ( this is another bug
> workaround actually[1]), then libvirt ( running with root ) will change the
> file owner to qemu process user/group ( configured by dynamic_ownership ).
> Now qemu process can write logs into this file.
>
> # what's wrong now
> libvirt 2.5.0 stop change the file owner, then qemu/libvirt failed to write
> logs into console.log file
>
> # other test
>
> * ubuntu + fallback libvirt 1.3.x works [2]
> * ubuntu + libvirt 2.5.0 + chang the qemu process user/group to
>   nova:nova works, too.[3]
> * centos + libvirt 2.0.0 works, never saw such issue in centos.
>
> # conclusion
> I guess there are something wrong in libvirt 2.5.0 with dynamic_ownership
>
>
> [0] https://bugs.launchpad.net/kolla-ansible/+bug/1668654
> [1] https://github.com/openstack/nova/blob/master/
> nova/virt/libvirt/driver.py#L2922,L2952
> [2] https://review.openstack.org/442673
> [3] https://review.openstack.org/442850
>
> --
> Regards,
> Jeffrey Zhang
> Blog: http://xcodest.me
>
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