** Also affects: nova/train
Importance: Undecided
Status: New
** Changed in: nova/train
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1848308
Title:
Impossible to set instance CPU policy to 'shared' through flavor image
property
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) train series:
Fix Released
Bug description:
According to the content defined in doc
https://docs.openstack.org/nova/latest/admin/cpu-topologies.html
#customizing-instance-cpu-pinning-policies, the instance CPU
allocation policy could be explicitly set through instance flavor
property 'hw:cpu_policy', or its corresponding image property
'hw_cpu_policy'.
One general rule to solve the conflict between these two properties, if I
understand it correctly, is if 'hw:cpu_policy' is not given with any policy,
then it should take the policy from 'hw_cpu_policy'. But currently, if
'hw_cpu_policy' is set as 'shared' and no value set in 'hw:cpu_policy' the
logic in 'hardware.get_cpu_policy_constraint' tells that there is no CPU policy
(throug return a value of None).
In this case, it should return the "shared" policy.
This issue is first reported in https://review.opendev.org/#/c/688603/
but without tracking with a bug ID.
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