Cloud-based scalable resiliency pattern using PRISM

Applications in distributed systems are enhanced due to microservice architecture. It enriches the cloud’s unique features like availability and scalability. The distributed nature has a broad set of failure points; thereupon resilience is the predominant factor for surviving these failures. Resilient feature of a microservice-based application is substantially offered by circuit breaker pattern, which scans the failure rate and safeguards from cascading failures. This paper analyses the behaviour pattern of a microservice-based application under transient failure. As a result, the execution time during failure of an application is 23% faster when working with internal circuit breakers. Model-based verification techniques such as CTMC were performed to analyse the steady state probability of completed requests between the working cases of internal circuit breakers and proxy circuit breakers. The generated probability values of the internal circuit breaker, assure the 99% availability of the service even at times of failure. Copyright © 2024 Inderscience Enterprises Ltd.