[Openstack-operators] Instance Scheduling on Hosts

Ahmad Ahmadi ahmadidamha at yahoo.com
Wed Jul 3 21:31:25 UTC 2013

I'm using folsom. Getting scheduler error.
Here are my commands, nova.conf and log file:

 From: Sylvain Bauza <sylvain.bauza at digimind.com>
To: Ahmad Ahmadi <ahmadidamha at yahoo.com> 
Cc: "openstack-operators at lists.openstack.org" <openstack-operators at lists.openstack.org> 
Sent: Wednesday, July 3, 2013 7:16 AM
Subject: Re: [Openstack-operators] Instance Scheduling on Hosts

I ended up successfully in creating flavors with aggregate hosts metadata and the filter you mentioned on my Folsom install.

I followed the same configuration steps [1]

What kind of error are you getting ? Is nova-scheduler failing
        or nova-compute ? Check the logs to get the exact error, please


[1] :

Le 02/07/2013 22:55, Ahmad Ahmadi a écrit :

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?
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