On 16 February 2015 at 14:22, Christian Berendt <christ...@berendt.io> wrote:
> On 02/14/2015 06:54 PM, Daniel Spiekermann wrote: > > is it possible to migrate 2 different VMs to the same compute node? > > Have you tried it with nova live-migration or only with nova migrate? > > With nova live-migration it is possible to specify the target host. > > usage: nova live-migration [--block-migrate] [--disk-over-commit] > <server> [<host>] > > Migrate running server to a new machine. > > Positional arguments: > <server> Name or ID of server. > <host> destination host name. > > Christian. > Initially I thought that the server group affinity filter (available since Icehouse) would be suitable for the use case you have outlined: - http://docs.openstack.org/trunk/config-reference/content/section_compute-scheduler.html#servergroupaffinityfilter However it seems that it is currently only honoured at boot and updated for the upcoming Kilo release - https://blueprints.launchpad.net/nova/+spec/anti-affinity-on-migration. Until then live migration may indeed be your only way to achieve the required affinity behaviour. Regards, -- Adnan
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