[Openstack-operators] set max number of instances per compute node

J.O'Loughlin at surrey.ac.uk J.O'Loughlin at surrey.ac.uk
Wed Jan 18 16:33:05 UTC 2012


Are there any docs on configuring the various schedulers? I'm  putting together a test cloud, and have a variety of different servers. 

Regards

John O'Loughlin
FEPS IT, Service Delivery Team Leader
________________________________________
From: Diego Parrilla Santamaría [diego.parrilla.santamaria at gmail.com]
Sent: 18 January 2012 16:28
To: O'Loughlin JF Mr (FEPS Faculty Admin)
Cc: fifieldt at unimelb.edu.au; openstack-operators at lists.openstack.org
Subject: Re: [Openstack-operators] set max number of instances per compute node

Correct me if I'm wrong, but this parameter is used by the SimpleScheduler, so it must be in the configuration file used by nova-scheduler.

Cheers
Diego

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Diego Parrilla
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On Wed, Jan 18, 2012 at 4:57 PM, <J.O'Loughlin at surrey.ac.uk<mailto:J.O%27Loughlin at surrey.ac.uk>> wrote:

Thanks,

I added this as an option to nova.conf on one of my compute nodes and doesn't work. Does it need to be set on the scheduler host? if so, is it possible to set different values for different compute hosts?

Regards

John O'Loughlin
FEPS IT, Service Delivery Team Leader
________________________________________
From: openstack-operators-bounces at lists.openstack.org<mailto:openstack-operators-bounces at lists.openstack.org> [openstack-operators-bounces at lists.openstack.org<mailto:openstack-operators-bounces at lists.openstack.org>] On Behalf Of Tom Fifield [fifieldt at unimelb.edu.au<mailto:fifieldt at unimelb.edu.au>]
Sent: 18 January 2012 12:53
To: openstack-operators at lists.openstack.org<mailto:openstack-operators at lists.openstack.org>
Subject: Re: [Openstack-operators] set max number of instances per compute node

http://docs.openstack.org/diablo/openstack-compute/admin/content/reference-for-flags-in-nova-conf.html

--max_cores     default: '16'   Integer value; Maximum number of instance
cores to allow per compute host.

Regards,

Tom

On 18/01/12 23:05, J.O'Loughlin at surrey.ac.uk<mailto:J.O%27Loughlin at surrey.ac.uk> wrote:
>
> All,
>
> is there a way to set the maximum number of instances or cores that can be used on a compute node? (similar to the max_cores option in eucalyptus)
>
> I'm running diablo.
>
> Regards
>
> John O'Loughlin
> FEPS IT, Service Delivery Team Leader
> _______________________________________________
> Openstack-operators mailing list
> Openstack-operators at lists.openstack.org<mailto:Openstack-operators at lists.openstack.org>
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>

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