Greetings, Now in oslo, we already put some scheduler filters/weights logic there and cinder is using oslo scheduler filters/weights logic, seems we want both nova&cinder use this logic in future.
Found some problems as following: 1) In cinder, some filters/weight logic reside in cinder/openstack/common/scheduler and some filter/weight logic in cinder/scheduler, this is not consistent and also will make some cinder hackers confused: where shall I put the scheduler filter/weight. 2) Nova is not using filter/weight from oslo and also not using entry point to handle all filter/weight. 3) There is not enough filters in oslo, we may need to add more there: such as same host filter, different host filter, retry filter etc. So my proposal is as following: 1) Add more filters to oslo, such as same host filter, different host filter, retry filter etc. 2) Move all filters/weight logic in cinder from cinder/scheduler to cinder/openstack/common/scheduler 3) Enable nova use filter/weight logic from oslo (Move all filter logic to nova/openstack/common/scheduler) and also use entry point to handle all filters/weight logic. Comments? Thanks, Jay
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