Re: [rdo-users] Define CPU and RAM allocation ratios
On Thu, Oct 11, 2018 at 4:26 AM Cody <codeology.lab(a)gmail.com> wrote:
Hi everyone,
If I wish to define CPU and RAM allocation ratios at the time of deployment for the
Queens release, which one of the following methods is correct?
# Method 1
parameter_defaults:
ComputeExtraConfig:
nova::compute::cpu_allocation_ratio: 10.0
nova::compute::ram_allocation_ratio: 1.0
This is the right approach but the hiera keys you're using are wrong I
think - check:
https://github.com/openstack/tripleo-heat-templates/blob/stable/queens/pu...
https://github.com/openstack/puppet-nova/blob/master/manifests/init.pp#L385
So something like:
parameter_defaults:
ComputeExtraConfig:
nova::cpu_allocation_ratio: 10.0
nova::ram_allocation_ratio: 1.0
is probably neeeded - for *ExtraConfig overrides the hiera keys must
always align with the interfaces exposed by the underlying puppet
modules.
# Method 2
parameter_defaults:
NovaCpuAllocationRatio: 10.0
NovaRamAllocationRatio: 1.0
I don't think this will work because no parameters with these names
are exposed via tripleo-heat templates (see the link to
nova-scheduler.yaml above for example).
Such an interface could be added though, but we don't expose every
puppet/hiera option as heat parameters (a case can probably be made
for these being common enough to add though).
Hope that helps,
Steve Hardy