[openstack-dev] [neutron][lbaasv2] Migrate LBaaS instance

Saverio Proto saverio.proto at switch.ch
Fri Mar 17 11:54:35 UTC 2017

Hello there,

I am just back from the Ops Midcycle where Heidi Joy Tretheway reported
some data from the user survey.

So if we look at deployments with more than 100 servers NO ONE IS USING
NEWTON yet. And I scream this loud. Everyone is still in Liberty or Mitaka.

I am just struggling to upgrade to LBaaSv2 to hear that is already going
into deprecation. The feature Zhi is proposing is important also for me
once I go to production.

I would encourage devs to listen more to operators feedback. Also you
devs cant just ignore that users are running still Liberty/Mitaka so you
need to change something in this way of working or all the users will
run away.

thank you


On 16/03/17 16:26, Kosnik, Lubosz wrote:
> Hello Zhi,
> Just one small information. Yesterday on Octavia weekly meeting we
> decided that we’re gonna add new features to LBaaSv2 till Pike-1 so the
> windows is very small.
> This decision was made as LBaaSv2 is currently Octavia delivery, not
> Neutron anymore and this project is going into deprecations stage.
> Cheers,
> Lubosz
>> On Mar 16, 2017, at 5:39 AM, zhi <changzhi1990 at gmail.com
>> <mailto:changzhi1990 at gmail.com>> wrote:
>> Hi, all
>> Currently, LBaaS v2 doesn't support migration. Just like router
>> instances, we can remove a router instance from one L3 agent and add
>> it to another L3 agent.
>> So, there is a single point failure in LBaaS agent. As far as I know,
>> LBaaS supports " allow_automatic_lbaas_agent_failover ". But in many
>> cases, we want to migrate LBaaS instances manually. Do we plan to do this?
>> I'm doing this right now. But I meet a question. I define a function
>> in agent_scheduler.py like this:
>>     def remove_loadbalancer_from_lbaas_agent(self, context, agent_id,
>> loadbalancer_id):
>>         self._unschedule_loadbalancer(context, loadbalancer_id, agent_id)
>> The question is, how do I notify LBaaS agent? 
>> Hope for your reply.
>> Thanks
>> Zhi Chang
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Saverio Proto, Peta Solutions
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