To the best of my knowledge, neither of the commits mentioned in comments 2 or 3 could cause connection errors using pymysql. There was a patch merged to keystone that allowed the retrieval of expired tokens [0], but that logic executes prior to keystone asking the database for a list of revocation events.
To the best of my knowledge, neither of the commits mentioned in comments 2 or 3 could cause connection errors using pymysql. There was a patch merged to keystone that allowed the retrieval of expired tokens [0], but that logic executes prior to keystone asking the database for a list of revocation events.
[0] https:/ /review. openstack. org/#/c/ 382098/ 14/keystone/ token/provider. py