Worked on implementing a distributed-consensus driven DNS thing like 15 years ago. We had 3 DCs around the world for a very compute-intense but not very statefu

Worked on implementing a distributed-consensus driven DNS thing like 15 years ago. We had 3 DCs around the world for a very compute-intense but not very stateful service. It actually just worked without any meaningful testing on the first single DC outage. In retrospect I'm amazed.