The other day someone asked me if the SQLAlchemy connections to the DB where per worker or shared among all workers, and what was the number of connections that should be expected from an OpenStack service. Maybe you have also wondered about this at some point, wonder no more, here’s a quick write up summarizing it. OpenStack services use Oslo DB library for database access, which in turn uses the SQLAlchemy library as the ORM, so we define our connection […]