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Hi Dan

How do you think current multi-host design?

- Currently, a centralized dhcp agent hosts all dhcp networks as children.

https://docs.google.com/presentation/d/1kisLDcWg_Mus5g8QzXMD4w7gWou-3t1drbOKTlYg6MU/edit#slide=id.p9

Current Design
- To know what network must be on the host where the agent running on,
implement get_local_port_ids (Look at the doc page 9)
- If an network must be on the host, spawn dhcp service process,
otherwise don't do anything.

https://blueprints.launchpad.net/quantum/+spec/quantum-multihost-dhcp

2012/8/8 MURAOKA Yusuke <yusuke at jbking.org>:
> Hi,
>
> I've updated the bp to correspond with current design spec.
>> https://blueprints.launchpad.net/quantum/+spec/quantum-multihost-dhcp
>
>
> I'd know the case of failure, improper, insane, by that.
> Anyway, comments, discussions are welcome.
>
> Thanks.
>
> --
> MURAOKA Yusuke
>
> Mail: yusuke at jbking.org
>
>
> 日付：2012年8月7日火曜日、時刻：2:47、差出人：Nachi Ueno：
>
>> Hi Dan
>>
>> Thank you for pointing this.
>>
>> Yusuke updated design spec.
>> https://blueprints.launchpad.net/quantum/+spec/quantum-multihost-dhcp
>>
>> 2012/8/6 Dan Wendlandt <dan at nicira.com (mailto:dan at nicira.com)>:
>> > Hi Nachi,
>> >
>> > I've reviewed the code and added comments. I'd like to see at least a basic
>> > spec describing the proposed approach (need only be a couple paragraphs,
>> > perhaps with a diagram) linked to the blueprint so we can have a design
>> > discussion around it. Thanks,
>> >
>> > Dan
>> >
>> >
>> > On Fri, Aug 3, 2012 at 1:03 PM, Nachi Ueno <nachi at nttmcl.com (mailto:nachi at nttmcl.com)> wrote:
>> > >
>> > > Hi folks
>> > >
>> > > Sorry.
>> > > I added openstack-dev at lists.openstack.org (mailto:openstack-dev at lists.openstack.org) in this discussion.
>> > >
>> > > 2012/8/3 Nati Ueno <nati.ueno at gmail.com (mailto:nati.ueno at gmail.com)>:
>> > > > Hi folks
>> > > >
>> > > > > Gary
>> > > > Thank you for your comment. I wanna discuss your point on the mailing
>> > > > list.
>> > > >
>> > > > Yusuke pushed Multi-host implementation for review.
>> > > > https://review.openstack.org/#/c/10766/2
>> > > > This patch changes only quantum-dhcp-agent side.
>> > > >
>> > > > Gary's point is we should have host attribute on the port for
>> > > > scheduling.
>> > > > I agree with Gary.
>> > > >
>> > > > In the nova, vm has available_zone for scheduling.
>> > > > So Instead of using host properties.
>> > > > How about use available_zone for port?
>> > > >
>> > > > Format of availability_zone is something like this
>> > > > available_zone="zone_name:host".
>> > > >
>> > > > We can also add availability_zone attribute for the network as a
>> > > > default value of port.
>> > > > We can write this until next Monday.
>> > > > However I'm not sure quantum community will accept this or not, so I'm
>> > > > asking here.
>> > > >
>> > > > If there are no objections, we will push zone version for review.
>> > > > Thanks
>> > > > Nachi
>> > > >
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>> >
>> >
>> >
>> >
>> > --
>> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> > Dan Wendlandt
>> > Nicira, Inc: www.nicira.com (http://www.nicira.com)
>> > twitter: danwendlandt
>> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> >
>> >
>> > --
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