[openstack-dev] [nova] Manage multiple clusters using a single nova service

Dan Smith dms at danplanet.com
Wed Jul 23 15:39:45 UTC 2014


>> I'm just do not suppor the idea that Nova needs to change its 
>> fundamental design in order to support the *design* of other host 
>> management platforms.
> 
> The current implementation doesn't make nova change its design, the 
> scheduling decisions are still done by nova.

Nova's design is not just "making the scheduling decisions" but also
includes the deployment model, which is intended to be a single compute
service tied to a single hypervisor. I think that's important for scale
and failure isolation at least.

> Its only the deployment that has been changed. Agree that there are 
> no separate topic-exchange queues for each cluster.

I'm definitely with Jay here: I want to get away from hiding larger
systems behind a single compute host/service.

--Dan

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