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Hi Youcef,

We call scheduler at pool creation.

Eugene.

On Thu, Jan 24, 2013 at 1:52 AM, Youcef Laribi
<Youcef.Laribi at eu.citrix.com>wrote:

> Hi Eugene,****
>
> ** **
>
> Thanks for the update. This looks a good plan for Grizzly.****
>
> ** **
>
> One question on the time we select a device. Do we call the scheduler to
> select a device (given a certain service type) at the time of the pool
> creation or at the time of the vip creation?****
>
> ** **
>
> Youcef****
>
> ****
>
> ** **
>
> *From:* Eugene Nikanorov [mailto:enikanorov at mirantis.com]
> *Sent:* Tuesday, January 22, 2013 7:21 AM
> *To:* OpenStack Development Mailing List
> *Subject:* [openstack-dev] [Quantum][LBaaS] Scheduling & device
> management for LBaaS****
>
> ** **
>
> Hi folks,****
>
> ** **
>
> I'd like to present blueprint
> https://blueprints.launchpad.net/quantum/+spec/quantum-service-schedulerwhich I feel needs to be in grizzly.
> ****
>
> You can find more detailed description in specification page.****
>
> ** **
>
> Initially we planned to have comprehensive device management as separate
> plugin with extension and complicated schedulers.****
>
> However due to the lack of time and reviewer resources we desided to
> greatly reduce the scope of this work.****
>
> So, currently the code on review ( https://review.openstack.org/#/c/20225/ )
> introduces the following:****
>
> 1) Configuration management for service schedulers, e.g. admin can
> configure particular scheduler for particular service type****
>
> 2) Simplistic scheduler for lbaas:****
>
>   - scheduling algorithm that randomly chooses a device from list of
> devices****
>
>   - device manager that reads devices from predefined conf-file
> (suggestion from Salvatore)****
>
> ** **
>
> I believe this is reasonable minimum that will allow to use LBaaS service
> at least with some convenience. ****
>
> (In fact, I'd provide some more scheduling algorithms)****
>
> ** **
>
> We have also started to integrate this code with code of
> lbaas-agent-and-rpc<https://blueprints.launchpad.net/quantum/+spec/lbaas-agent-and-rpc> according
> to the call sequence diagram:****
>
> http://wiki.openstack.org/Quantum/LBaaS/Architecture/Scheduler****
>
> So we plan that this code will be base patch for lbaas-agent-and-rpc<https://blueprints.launchpad.net/quantum/+spec/lbaas-agent-and-rpc>
> .****
>
> ** **
>
> Thanks,****
>
> Eugene.****
>
> ** **
>
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