Comment 2 for bug 1849701

What specific release of nova on queens? When you deleted the compute node, did you do it by deleting the compute service through the DELETE /os-services/{service_id} API? Because if so, that should clean up the resource provider assuming it doesn't have allocations against it in placement which prevents us from deleting it.

Do you have this fix which was released in queens 17.0.5:

https://review.opendev.org/#/c/563698/

If so, as I said if the resource provider has allocations against it that might be why it wasn't deleted when the compute service/node was deleted, there are some related known bugs there:

https://bugs.launchpad.net/nova/+bug/1829479

https://bugs.launchpad.net/nova/+bug/1817833