Author: Zen and the Art of Computer Programming
1 Introduction
With the rapid development of the Internet, the application architecture based on the Internet is changing. The traditional monolithic application architecture model is gradually being replaced by the microservice architecture model. As a technician, how to build a scalable, highly available, and high-performance microservice architecture? This article will combine practical experience to introduce readers to how to build a scalable microservice architecture.
Why focus on scalable microservices architecture?
Scalability is a very important issue. In the era of stand-alone computing, developers are mainly faced with many limitations such as limited hardware resources and frequent updates of dependent library versions. As applications become larger and larger, a single machine can no longer meet the demand for performance improvement. Therefore, in order to cope with the sharp increase in business demand caused by rapid business growth, it is necessary to adopt a distributed architecture model to split the service into multiple independently deployed small server clusters, and implement applications through load balancing, traffic management, and service discovery. horizontal expansion.
However, if the system design is not good, for example, over-designing the divide-and-conquer system leads to communication difficulties between subsystems, or failure to consider the fault tolerance of individual services, unpredictable system behavior may occur, and even catastrophic consequences may occur. Therefore, a highly scalable design is needed in the microservice architecture to ensure the stable operation of the system and the improvement of user experience.
So, how to achieve scalability of microservices architecture? Below, I will aim to build a scalable microservice architecture and elaborate on the following aspects:
- Service architecture model and its advantages
- Introduction of gateway layer
- How to design an API gateway
- Distributed data storage design solution
- Service fault tolerance solution
- Set up and monitor test environment
- Strategic selection of rolling release and blue-green release