Dear all, Following the initial discussions at the last design summit, we have published the design [2] and the first take on the implementation [3] of the blueprint adding support for multiple active scheduler policies/drivers [1]. In a nutshell, the idea is to allow overriding the 'default' scheduler configuration parameters (driver, filters, their configuration parameters, etc) for particular host aggregates. The 'policies' are introduced as sections in nova.conf, and each host aggregate can have a key-value specifying the policy (by name).
Comments on design or implementation are welcome! Thanks, Alex [1] https://blueprints.launchpad.net/nova/+spec/multiple-scheduler-drivers [2] https://wiki.openstack.org/wiki/Nova/MultipleSchedulerPolicies [3] https://review.openstack.org/#/c/37407/
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