https://nalar.dev/tags/resilience/ Recent content in Resilience on Nalar Hugo en-us Tue, 01 Sep 2026 00:00:00 +0700 https://nalar.dev/circuit-breakers-cloud-service-dependencies/ Tue, 01 Sep 2026 00:00:00 +0700 https://nalar.dev/circuit-breakers-cloud-service-dependencies/ <p>When a downstream service is failing, continuing to send every request can waste threads, sockets, and latency budget while increasing load on the unhealthy dependency. A circuit breaker temporarily fails calls fast after failures cross a threshold.</p> <h2 id="understand-the-three-states">Understand the three states</h2> <p>A typical breaker is <strong>closed</strong> while calls flow normally. It moves <strong>open</strong> after a configured failure policy is exceeded. After a recovery interval, it becomes <strong>half-open</strong> and allows a limited number of probes. Successful probes close the circuit; failures open it again.</p>