How to check your resilience4j Circuit Breaker in Real World Environment
Blog post from Steadybit
In a follow-up to a previous discussion on retries using Resilience4j, the blog post explores the implementation of circuit breakers to enhance system resilience by preventing cascading failures in microservices architecture. Circuit breakers serve to monitor and temporarily halt requests to a failing service once a failure threshold is reached, allowing the system to maintain functionality without overloading the troubled service. The post details how to configure circuit breakers in Resilience4j, using annotations and specific settings to fine-tune their behavior. It describes a chaos engineering experiment conducted using Steadybit, designed to test the circuit breaker's efficacy in a Kubernetes-deployed gateway. The experiment involved manipulating microservices to assess the circuit breaker’s response, confirming its proper functioning and illustrating the importance of integrated testing and hypothesis formation in chaos engineering. The experiment concluded successfully, validating the circuit breaker's configuration and demonstrating its role in maintaining system resilience during failure scenarios.