So, circuit breakers.

Hey everyone, I've been thinking about resilience a lot lately, and how we deal with downstream service failures. We've got some basic retry stuff in place, but I'm really curious to hear what you all do about circuit breaker patterns. When do you usually start using them? What libraries or implementations have worked well for you in the real world? Any major pitfalls to avoid when setting thresholds or figuring out how to recover? Let's chat about it!