[openstack-dev] [nova][cinder][oslo][scheduler] How to leverage oslo schduler/filters for nova and cinder
jay.lau.513 at gmail.com
Sun Nov 10 09:59:58 UTC 2013
I noticed that there is already a bp in oslo tracing what I want to do:
2013/11/9 Jay Lau <jay.lau.513 at gmail.com>
> 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
> 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.
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