[Openstack-operators] [openstack-dev] [nova] [placement] extraction (technical) update

Matt Riedemann mriedemos at gmail.com
Wed Sep 5 14:56:59 UTC 2018

On 9/5/2018 8:47 AM, Mohammed Naser wrote:
> Could placement not do what happened for a while when the nova_api
> database was created?

Can you be more specific? I'm having a brain fart here and not 
remembering what you are referring to with respect to the nova_api DB.

> I say this because I know that moving the database is a huge task for
> us, considering how big it can be in certain cases for us, and it
> means control plane outage too

I'm pretty sure you were in the room in YVR when we talked about how 
operators were going to do the database migration and were mostly OK 
with what was discussed, which was a lot will just copy and take the 
downtime (I think CERN said around 10 minutes for them, but they aren't 
a public cloud either), but others might do something more sophisticated 
and nova shouldn't try to pick the best fit for all.

I'm definitely interested in what you do plan to do for the database 
migration to minimize downtime.

+openstack-operators ML since this is an operators discussion now.




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