The Architecture of Resilience: Building Systems That Self-Heal

The shift from single-server applications to distributed systems changed the fundamental nature of software failure. In a distributed system, partial failures are not exceptions — they are the norm. Your architecture must treat failure as a first-class citizen.

Circuit Breakers and Bulkheads

Circuit breakers prevent cascading failures by detecting when a downstream service is unhealthy and stopping calls to it before it takes down your entire system. Bulkheads isolate failure domains so that one struggling component cannot consume all available resources.