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On 02/18/2014 12:36 PM, Matt Riedemann wrote:
>> 4) We talked about Nova's integration with Neutron and made some good
>> progress.  We came up with a blueprint (ideally for Icehouse) to improve
>> Nova-Neutron interaction.
>>
>> There are two cases we need to improve that have been particularly
>> painful.  The first is the network info cache.  Neutron can issue an API
>> callback to Nova to let us know that we need to refresh the cache.  The
>> second is knowing that VIF setup is complete.  Right now we have cases
>> where we issue a request to Neutron and it is processed asynchronously.
>>   We have no way to know when it has finished.  For example, we really
>> need to know that VIF plumbing is set up before we boot an instance and
>> it tries its DHCP request.  We can do this with nova-network, but with
>> Neutron it's just a giant race.  I'm actually surprised we've made it
>> this long without fixing this.
> 
> One or both of these issues (thinking VIF readiness) is also causing a
> gate failure in master and stable/havana:
> 
> https://bugs.launchpad.net/nova/+bug/1210483
> 
> I'd like to propose skipping that test if Tempest is configured with
> Neutron until we get the bug fixed/blueprint resolved.
> 
> By the way, can I get a link to the blueprint to reference in the bug
> (or vice-versa)?

I haven't seen a blueprint for this yet.

Mark, is that something you were planning on driving?

-- 
Russell Bryant