After more googling I could found more issues regarding logging and eventlet. For example, there is patch to nova https://review.openstack.org/#/c/22162/ (not accepted though), with description of the problem.
Anyway, this needs further investigation. I am not sure that we use tpool anywhere in Keystone.
After more googling I could found more issues regarding logging and eventlet. For example, there is patch to nova https:/ /review. openstack. org/#/c/ 22162/ (not accepted though), with description of the problem.
Anyway, this needs further investigation. I am not sure that we use tpool anywhere in Keystone.