On 03/03/2016 08:57 AM, Robert Starmer wrote:
There was work done on enabling much more dynamic scheduling, including
cross project scheduling (e.g. get additional placement hints from
Neutron or Cinder), and I believe the framework is even in place to make
use of this, but I don't believe anyone has written a scheduling
component to make use of this. I think your best bet would be to build
a custom weighted scheduler, which could be as simple as a linearly
decreasing weight for one group and the inverse for the other group.
Certainly this wouldn't be perfect, but might address your needs.
My ideas for replacing server groups with generic placement policies are
written down here, with some excellent feedback from a number of reviewers:
https://review.openstack.org/#/c/183837/
Would be great to get additional eyeballs on it. I was planning on
reviving these ideas in the Newton and Ocata releases once the scheduler
is split out from Nova.
Best,
-jay
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