Am 16.02.2015 um 16:55 schrieb Adnan Smajlovic:
On 16 February 2015 at 14:22, Christian Berendt <christ...@berendt.io
<mailto: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.
Thanks Christian and Adnan,
nova live-migration is exactly what I am looking for.
Works well for my little testlab
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