Increased Connections at an Alarming Rate?

[buddylindsey]

We are running a django app with django 3.2. We recently updated from 2.9.3 to 2.9.9 and almost immediately our connections shot up like crazy. We would open a connection to postgres and it would just not close. Finally, all of our gunicorn processes had open connections and our site didn't work.

We quickly failed over from our main db to a replica to reset all of the connections and everything went on working just fine.

2'ish days later the exact same thing happened again. We decided to downgrade to 2.9.3, and we haven't seen the issue for the last few days.

Has anyone else seen something like this before?