Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-28 Thread Sam Morrison
> On 26 Oct 2018, at 1:42 am, Dan Smith wrote: > >> I guess our architecture is pretty unique in a way but I wonder if >> other people are also a little scared about the whole all DB servers >> need to up to serve API requests? > > When we started down this path, we acknowledged that this

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-25 Thread Trinh Nguyen
Hi Matt, The Searchlight team decided to revive the required feature in Stein [1] and We're working with Kevin to review the patch this weekend. If Nova team needs some help, just let me know. [1] https://review.openstack.org/#/c/453352/ Bests, On Fri, Oct 26, 2018 at 12:58 AM Matt Riedemann

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-25 Thread Matt Riedemann
On 10/24/2018 6:55 PM, Sam Morrison wrote: I’ve been thinking of some hybrid cellsv1/v2 thing where we’d still have the top level api cell DB but the API would only ever read from it. Nova-api would only write to the compute cell DBs. Then keep the nova-cells processes just doing

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-25 Thread Dan Smith
> I guess our architecture is pretty unique in a way but I wonder if > other people are also a little scared about the whole all DB servers > need to up to serve API requests? When we started down this path, we acknowledged that this would create a different access pattern which would require ops

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-25 Thread melanie witt
On Thu, 25 Oct 2018 10:55:15 +1100, Sam Morrison wrote: On 24 Oct 2018, at 4:01 pm, melanie witt wrote: On Wed, 24 Oct 2018 10:54:31 +1100, Sam Morrison wrote: Hi nova devs, Have been having a good look into cellsv2 and how we migrate to them (we’re still on cellsv1 and about to upgrade

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-24 Thread Sam Morrison
> On 24 Oct 2018, at 4:01 pm, melanie witt wrote: > > On Wed, 24 Oct 2018 10:54:31 +1100, Sam Morrison wrote: >> Hi nova devs, >> Have been having a good look into cellsv2 and how we migrate to them (we’re >> still on cellsv1 and about to upgrade to queens and still run cells v1 for >> now).

Re: [openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-23 Thread melanie witt
On Wed, 24 Oct 2018 10:54:31 +1100, Sam Morrison wrote: Hi nova devs, Have been having a good look into cellsv2 and how we migrate to them (we’re still on cellsv1 and about to upgrade to queens and still run cells v1 for now). One of the problems I have is that now all our nova cell

[openstack-dev] [nova] nova cellsv2 and DBs / down cells / quotas

2018-10-23 Thread Sam Morrison
Hi nova devs, Have been having a good look into cellsv2 and how we migrate to them (we’re still on cellsv1 and about to upgrade to queens and still run cells v1 for now). One of the problems I have is that now all our nova cell database servers need to respond to API requests. With cellsv1 our