I've pushed some related changes for this bug am removing myself as assignee since I think we still have some known performance issues during scheduling, specifically around this method to get all host states from all cells, and for each compute (host state) getting the aggregates and instances from each cell db per host:
I've pushed some related changes for this bug am removing myself as assignee since I think we still have some known performance issues during scheduling, specifically around this method to get all host states from all cells, and for each compute (host state) getting the aggregates and instances from each cell db per host:
https:/ /github. com/openstack/ nova/blob/ b93b40c6c01a116 1f40592d29353c3 461669de19/ nova/scheduler/ host_manager. py#L704