[Openstack-operators] Instance Scheduling on Hosts

Ahmad Ahmadi ahmadidamha at yahoo.com
Tue Jul 2 21:56:49 UTC 2013

This is exactly what I'm looking for, but don't know how!
Would you please describe a bit more?


 From: Narayan Desai <narayan.desai at gmail.com>
To: Ahmad Ahmadi <ahmadidamha at yahoo.com> 
Cc: "openstack-operators at lists.openstack.org" <openstack-operators at lists.openstack.org> 
Sent: Tuesday, July 2, 2013 3:30 PM
Subject: Re: [Openstack-operators] Instance Scheduling on Hosts

We accomplished with a scheduler filter that only routes big mem requests to nodes with large memory footprint and doesn't consider these for smaller instance types.

On Tue, Jul 2, 2013 at 3:55 PM, Ahmad Ahmadi <ahmadidamha at yahoo.com> wrote:

I have two groups of hosts as compute nodes:
>BigGroup: a few machines with very big RAM
>SmallGroup: a lot of machines with smaller RAM each.
>My goal is to assigne bigger instances (from bigger flavors) to BigGroup and smaller instances to SmallGroup.
>I tried the "AggregateInstanceExtraSpecsFilter" filtering with assigning different keys to instances and making aggregated hosts (http://docs.openstack.org/folsom/openstack-compute/admin/content/host-aggregates.html), but didn't work and all the instance boots will end up to error.
>Any idea?
>More over does anyone know how can I assign higher cost to bigger nodes for weighting?
>OpenStack-operators mailing list
>OpenStack-operators at lists.openstack.org
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