[Openstack] unexpected distribution of compute instances in queens
On 11/30/2018 05:52 PM, Mike Carden wrote:
> Have you set the placement_randomize_allocation_candidates CONF option
> and are still seeing the packing behaviour?
> No I haven't. Where would be the place to do that? In a nova.conf
> somewhere that the nova-scheduler containers on the controller hosts
> could pick it up?
> Just about to deploy for realz with about forty x86 compute nodes, so it
> would be really nice to sort this first. :)
Presuming you are deploying Rocky or Queens,
It goes in the nova.conf file under the [placement] section:
randomize_allocation_candidates = true
The nova.conf file should be the one used by nova-scheduler.