Open Stack

On 02/22/2019 10:06 AM, Matt Riedemann wrote:
> On 2/22/2019 2:46 AM, Sanjay K wrote:
>> I will define/derive priority based on the which sub network the VM 
>> belongs to - mostly Production or Development. From this, the Prod VMs 
>> will have higher resource allocation criteria than other normal VMs 
>> and these can be calculated at runtime when a VM is also rebooted like 
>> how VMware resource pools and shares features work.
> 
> It sounds like a weigher in scheduling isn't appropriate for your use 
> case then, because weighers in scheduling are meant to weigh compute 
> hosts once they have been filtered. It sounds like you're trying to 
> prioritize which VMs will get built, which sounds more like a 
> pre-emptible/spot instances use case [1][2].
> 
> As for VMware resource pools and shares features, I don't know anything 
> about those since I'm not a vCenter user. Maybe someone more worldly, 
> like Jay Pipes, can chime in here.

I am neither worldly nor a vCenter user. Perhaps someone from VMWare, 
like Chris Dent, can chime in here ;)

Best,
-jay

> [1] 
> https://www.openstack.org/videos/summits/berlin-2018/science-demonstrations-preemptible-instances-at-cern-and-bare-metal-containers-for-hpc-at-ska 
> 
> [2] 
> https://specs.openstack.org/openstack/nova-specs/specs/stein/approved/enable-rebuild-for-instances-in-cell0.html 
> 
>