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On Thu, Dec 10, 2020 at 13:18, Balázs Gibizer 
<balazs.gibizer at est.tech> wrote:
> 
> 
> On Wed, Dec 9, 2020 at 19:33, melanie witt <melwittt at gmail.com> wrote:
>> Howdy all,
>> 
>> FYI we have gate failures of the recently added 
>> test_*_with_qos_min_bw_allocation tests [1] in the nova-multi-cell 
>> job on the master, stable/victoria, and stable/ussuri branches. The 
>> failures occur during cross cell migrations.
>> 
>> I have opened a bug for the failure on the master branch:
>> 
>> * https://bugs.launchpad.net/nova/+bug/1907522
>> 
>> The issue here is that we fail to create port bindings in neutron 
>> during a cross cell migration in the superconductor:
>> 
>> nova.exception.PortBindingFailed: Binding failed for port <port uuid>
>> 
>> and that corresponds to a failure in the neutron server log where it 
>> fails the port binding with:
>> 
>> neutron_lib.exceptions.placement.UnknownResourceProvider: No such 
>> resource provider known by Neutron
>> 
>> I don't yet know what is going on here ^.
>> 
>> For the bug on stable/victoria and stable/ussuri I have opened this 
>> bug:
>> 
>> * https://bugs.launchpad.net/nova/+bug/1907511
>> 
>> and have a WIP stable-only patch proposed that needs tests:
>> 
>> https://review.opendev.org/c/openstack/nova/+/766364
>> 
>> I just wanted to see ASAP if the nova-multi-cell job will pass on it.
>> 
>> The issue here ^ is that during a cross cell migration, we aren't 
>> targeting the cell database for the target host when we attempt to 
>> lookup the service record of the target host.
>> 
>> For the stable branch failures I think the failure rate is 100% and 
>> it looks like it might also be 100% for the master branch failures.
> 
> Thanks Melanie!
> 
> A sort update. The test result in 
> https://review.opendev.org/c/openstack/nova/+/766364 shows that after 
> fixing the stable only https://bugs.launchpad.net/nova/+bug/1907511 
> we now hit the same failure on stable that is seen on master 
> https://bugs.launchpad.net/nova/+bug/1907522
> 
> Both master and stable branches are blocked at the moment.

Now we have patches to unblock master and stable/victoria, we just need 
to push the through the gate:

* master: https://review.opendev.org/c/openstack/nova/+/766471
* stable/victoria: https://review.opendev.org/c/openstack/nova/+/765749

Cheers,
gibi

> 
> Cheers,
> gibi
>> 
>> Cheers,
>> -melanie
>> 
>> [1] https://review.opendev.org/c/openstack/tempest/+/694539
>> 
> 
> 
>