On 12 May 2017, at 23:38, joehuang <[email protected]<mailto:[email protected]>> wrote:
Hello, Neutron cells aware is not equal to multi-site. There are lots of multi-site deployment options, not limited to nova-cells, whether to use Neutron-cells/Nova-cells in multi-site deployments, it's up to cloud operator's choice. For the bug[3], it's reasonable to make neutron support cells, but it doesn't implicate that multi-site should mandatory adopt neutron-cells. [3] https://bugs.launchpad.net/neutron/+bug/1690425 There are also a number of site limited deployments which use nova cells to support scalability within the site rather than only between sites. CERN has around 50 cells for the 2 data centre deployment we have. There is also no need to guarantee a 1-to-1 mapping between nova cells and neutron cells. It may be simpler to do it that way but something based on the ML2 subnet would also seem a reasonable way to organise the neutron work while many sites use nova cells based on one hardware type per cell, for example. Tim Best Regards Chaoyi Huang (joehuang) ________________________________ From: Armando M. [[email protected]<mailto:[email protected]>] Sent: 13 May 2017 3:13 To: OpenStack Development Mailing List (not for usage questions) Subject: Re: [openstack-dev] [neutron] multi-site forum discussion On 12 May 2017 at 11:47, Morales, Victor <[email protected]<mailto:[email protected]>> wrote: Armando, I noticed that Tricircle is mentioned there. Shouldn’t be better to extend its current functionality or what are the things that are missing there? Tricircle aims at coordinating independent neutron systems that exist in separated openstack deployments. Making Neutron cell-aware will work in the context of the same openstack deployment. Regards, Victor Morales From: "Armando M." <[email protected]<mailto:[email protected]>> Reply-To: "OpenStack Development Mailing List (not for usage questions)" <[email protected]<mailto:[email protected]>> Date: Friday, May 12, 2017 at 1:06 PM To: "OpenStack Development Mailing List (not for usage questions)" <[email protected]<mailto:[email protected]>> Subject: [openstack-dev] [neutron] multi-site forum discussion Hi folks, At the summit we had a discussion on how to deploy a single neutron system across multiple geographical sites [1]. You can find notes of the discussion on [2]. One key requirement that came from the discussion was to make Neutron more Nova cells friendly. I filed an RFE bug [3] so that we can move this forward on Lauchpad. Please, do provide feedback in case I omitted some other key takeaway. Thanks, Armando [1] https://www.openstack.org/summit/boston-2017/summit-schedule/events/18757/neutron-multi-site [2] https://etherpad.openstack.org/p/pike-neutron-multi-site [3] https://bugs.launchpad.net/neutron/+bug/1690425 __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe<http://[email protected]/?subject:unsubscribe> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]<mailto:[email protected]>?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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