[openstack-dev] [Nova] support for multiple active scheduler policies/drivers

Alex Glikson GLIKSON at il.ibm.com
Mon Jul 22 21:15:17 UTC 2013

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!


[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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