[openstack-dev] [Neutron][qa] Intermittent failure of tempest test test_network_basic_ops

Salvatore Orlando sorlando at nicira.com
Thu Jan 9 08:09:17 UTC 2014

I am afraid I need to correct you Jay!

This actually appears to be bug 1253896 [1]

Technically, what we call 'bug' here is actually a failure manifestation.
So far, we have removed several bugs causing this failure. The last patch
was pushed to devstack around Christmas.
Nevertheless, if you look at recent comments and Joe's email, we still have
a non-negligible failure rate on the gate.

It is also worth mentioning that if you are running your tests with
parallelism enabled (ie: you're running tempest with tox -esmoke rather
than tox -esmokeserial) you will end up with a higher occurrence of this
failure due to more bugs causing it. These bugs are due to some weakness in
the OVS agent that we are addressing with patches for blueprint
neutron-tempest-parallel [2].


[1] https://bugs.launchpad.net/neutron/+bug/1253896
[2] https://blueprints.launchpad.net/neutron/+spec/neutron-tempest-parallel

On 9 January 2014 05:38, Jay Pipes <jaypipes at gmail.com> wrote:

> On Wed, 2014-01-08 at 18:46 -0800, Sukhdev Kapur wrote:
> > Dear fellow developers,
> > I am running few Neutron tempest tests and noticing an intermittent
> > failure of tempest.scenario.test_network_basic_ops.
> > I ran this test 50+ times and am getting intermittent failure. The
> > pass rate is apps. 70%. The 30% of the time it fails mostly in
> > _check_public_network_connectivity.
> > Has anybody seen this?
> > If there is a fix or work around for this, please share your wisdom.
> Unfortunately, I believe you are running into this bug:
> https://bugs.launchpad.net/nova/+bug/1254890
> The bug is Triaged in Nova (meaning, there is a suggested fix in the bug
> report). It's currently affecting the gate negatively and is certainly
> on the radar of the various PTLs affected.
> Best,
> -jay
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