Investigate periodic increases in DB1 idle connections
https://performance.gitlab.net/dashboard/db/postgres-stats?refresh=5m&panelId=1&fullscreen&orgId=1&from=now-24h&to=now shows a periodic increase of idle connections on DB1. This suggests that some set of processes is starting periodically, then terminated. We need to investigate what this is and if we can make it stop.
cc @gl-infra