As an operator with a lot of storage nodes/disks, I want the partition power for Swift to be larger than today. Today the partition power in director installations is fixed to 10. This is most likely fine for most standard installations; however if there is a large number of disks and/or storage nodes, it might not be sufficient and should be larger by default. There is an option to define this during the initial deployment, but operators might not be aware of this and therefore it should be set based on the number of available disks. See https://access.redhat.com/articles/2745961 for some best practice numbers.
Closing this BZ. We have a doc section covering this (https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.0/html/deployment_recommendations_for_specific_red_hat_openstack_platform_services/svc-objectstorage#svc-objectstorage-partition), and in case of very large Swift clusters operators need to decide which partition power is the right one. This should likely not be automated. Additionally, the upstream bug has been abandoned as well.