Circuit Breaker in Microservices: State of the Art and Future Prospects

Resilience is one of the important issues in the implementation of microservices architecture, and to handle it, various approaches and solutions are available. A circuit breaker is a solution to handle failure in microservices and is now widely implemented both as a library and as a pattern embedded in the service and client modules. Despite the widespread use of circuit breaker, the research on circuit breaker is relatively less than research subject on other microservices area, or in microservices resiliency. This article provides an overview of recent research in circuit breaker, map the research subject, and find the opportunities for future research. The research is conducted using a systematic map study but the results focused on extract the knowledge and find important keywords to build a conceptual overview of the research field circuit breaker. The result shows that there are five categories of research subjects which are concept, strategy, management, implementation, and products. After exploring each category, we can propose the opportunity in enhancing the use of circuit breaker in microservices architecture, by explore the potential implementation of proxy circuit breaker.