The TLS cert renewal was a big failure on our part. I know that's, like, a one strike and you're out problem, but we've improved that part of our stack substantially. It should be much more resilient.

Redis/Postgres timeouts sound like they might be a problem we can help with, though. Both those services work through a load balancer with a TCP idle timeout. If you get timeouts after a period of inactivity, it's usually a simple config tweak to have a driver handle that seamlessly.

The timeout issues surprised me, more drivers than we expected can't handle a DB connection timing out when it's idle.