Another approach that I would recommend is to use the "--availability-zone azname:hostname" flag.
https://bugs.launchpad.net/ubuntu/+source/nova/+bug/1061665 Regards, Alex From: Li Ma <[email protected]> To: Mike Wilson <[email protected]>, David Wittman <[email protected]>, Cc: OpenStack General Mailing List <[email protected]> Date: 17/10/2013 05:46 AM Subject: Re: [Openstack] a problem with nova scheduler Thanks for the hint. I'll try it later. On Thu, Oct 17, 2013 at 9:29 AM, Mike Wilson <[email protected]> wrote: There is a scheduler hint called 'force_hosts' for this sort of thing. I believe the command line looks like this: Nova boot <server_name> --hints force_hosts=host1 <everything else> Does that work for you? This does not bypass the scheduler, but it is built into the scheduler to allow you to explicitly place new instances on a subset of hardware. -Mike Wilson Sent from my iPhone On Oct 16, 2013, at 6:35 PM, Li Ma <[email protected]> wrote: Hi all, I encountered a problem with nova-scheduler. Given that I have 20 different compute nodes, I need to run several instances on a certain compute node for testing or verification. I go through all the scheduling algorithms and find out I can achieve this by availability zone. But this is a little bit weird to create more than 20 availability zone with only one compute node temporarily. Is there any other solutions for this? In my opinion, there should be a certain parameter with nova CLI to specify which compute node this instance should be placed directly without any scheduling. Using this method, I can bypass the scheduling options defined in the nova.conf and do what we want to meet the specific requirements. Thanks, -- Li Ma (Nick) Email: [email protected] _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack -- Li Ma (Nick) Architect of Stackinsider Email: [email protected] _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
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