Some additional info.

I took down all instances of the site that were running, including locally. And then waited a few minutes. Still 0 of 47 available connections.

Under the logs and queries tab, I am STILL seeing constant failed queries. Here is what they look like:

06-12-2020 11:36:30PM   postgresql-11.service   [11-1] user=postgres,db=prod,app=do-stats,client=[local] LOG: disconnection: session time: 0:00:00.029 user=postgres database=prod host=[local]

06-12-2020 11:36:30PM   postgresql-11.service   [10-1] user=postgres,db=prod,app=[unknown],client=[local] LOG: connection authorized: user=postgres database=prod

06-12-2020 11:36:30PM   postgresql-11.service   [9-1] user=[unknown],db=[unknown],app=[unknown],client=[local] LOG: connection received: host=[local]

06-12-2020 11:36:30PM   postgresql-11.service   [11-1] user=postgres,db=dev,app=do-stats,client=[local] LOG: disconnection: session time: 0:00:00.021 user=postgres database=dev host=[local]

06-12-2020 11:36:30PM   postgresql-11.service   [10-1] user=postgres,db=dev,app=[unknown],client=[local] LOG: connection authorized: user=postgres database=dev

06-12-2020 11:36:30PM   postgresql-11.service   [11-1] user=postgres,db=defaultdb,app=do-stats,client=[local] LOG: disconnection: session time: 0:00:00.029 user=postgres database=defaultdb host=[local]

None of my connections are setup to use the default postgres user, nor am I using defaultdb. The prod db is the one that has the connection pool in front of it - and since all versions of the site are down, shouldn’t be getting any queries at all.