2024-03-15
Building a Circuit Breaker in Go
How to implement the circuit breaker pattern to prevent cascading failures in microservices. Includes practical examples and production gotchas.
backend engineer
I build distributed systems and scalable infrastructure. Currently focused on improving database performance and designing resilient microservices architectures.
My work involves Go, PostgreSQL, Redis, and Kubernetes. I care deeply about observability, testing, and making systems that don't wake you up at 3am.
Previously worked at several startups in Berlin and Amsterdam, helping them scale from prototype to production. When I'm not coding, I'm probably reading about distributed consensus algorithms or hiking somewhere remote.
How to implement the circuit breaker pattern to prevent cascading failures in microservices. Includes practical examples and production gotchas.
Lessons learned from debugging connection pool exhaustion in production. Covering pgBouncer, connection limits, and monitoring strategies.
When Redis works great as a lightweight queue and when you should reach for something else. Real-world tradeoffs from production experience.