Similarly, I worked on a team that experienced backend failures in a custom distributed hash table that some crazy person decided to deploy on the cheapest serv

Similarly, I worked on a team that experienced backend failures in a custom distributed hash table that some crazy person decided to deploy on the cheapest server tier available from Hetzner hosting. Every hot summer day around 3pm, we started to see cascading failures in the DHT nodes. Turned out Hetzner were to cheap to pay for cooling for their cheapest server racks and they all failed like clockwork when it got hot enough outside.