[nova][gate] nova-multi-cell job failing test_*_with_qos_min_bw_allocation
melanie witt
melwittt at gmail.com
Thu Dec 10 03:33:44 UTC 2020
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.
Cheers,
-melanie
[1] https://review.opendev.org/c/openstack/tempest/+/694539
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