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On 5/25/2018 12:56 AM, Matt Riedemann wrote:
> On 5/24/2018 8:33 PM, Jeffrey Zhang wrote:
>> Recently, i am trying to implement a function which aggregate nova 
>> hypervisors
>> rather than nova compute host. But seems nova only aggregate 
>> nova-compute host.
>>
>> On the other hand, since Ocata, nova depends on placement api which 
>> supports
>> aggregating resource providers. But nova-scheduler doesn't use this 
>> feature
>> now.
>>
>> So  is there any better way to solve such issue? and is there any plan 
>> which
>> make nova legacy aggregate and placement api aggregate cloud work 
>> together?
> 
> There are some new features in Rocky [1] that involve resource provider 
> aggregates for compute nodes which can be used for scheduling and will 
> actually allow you to remove some older filters 
> (AggregateMultiTenancyIsolation and AvailabilityZoneFilter). CERN is 
> using these to improve performance with their cells v2 deployment.
> 

Oops, I forgot to include the link to the reference [1].

[1] 
https://docs.openstack.org/nova/latest/admin/configuration/schedulers.html#aggregates-in-placement

-- 

Thanks,

Matt