Building an Active/Standby HA Architecture with Queue-Based Microservices using Azure Functions
In recent years, the microservices architecture has gained traction owing to its remarkable scalability and adaptability. Azure Functions, a serverless compute service, facilitates the development of dynamic, scalable microservices. When designing microservices for enterprise systems, achieving high availability (HA) is crucial. This blog post delves into a strategy for constructing a HA architecture that incorporates queue-based microservices through the use of Azure Functions. Challenges with Queue-Based Microservices Creating HA queue-based microservices using Azure Functions comes with some design challenges. One of them is deciding between an Active/Active or Active/Standby architecture. While having an Active/Active architecture is trivial, it carries a cost from inter-region traffic and compute resources. Additionally, there may be scenarios where multiple consumers for the same queue are not necessary or desired, making Active/Standby a better option. But there is a proble...