What are the system architectures?

The types of system architecture include: 1. Single database and single application architecture; 2. Content distribution architecture; 3. Read and write separation architecture; 4. Microservice architecture; 5. Multi-level cache architecture; 6. Sub-library and sub-database architecture. Table schema and so on.

Common system architectures include the following:

1. Single database single application architecture: This is the simplest design mode, most undergraduate graduation projects and some small applications are in this mode. The general design has a database, a business application layer, and a backend management system. All services are completed by the business layer, and all data are stored in a database. Although simple, its disadvantages are poor performance, basically no high availability, poor scalability, and not suitable for large-scale deployment, applications and other production environments.
2. Content distribution architecture: An architecture that is currently used more frequently. Content delivery network (CDN) can relieve Internet bandwidth pressure and improve user access speed.
3. Read-write separation architecture: For large concurrent queries and businesses, better performance can be achieved through read-write separation.
4. Microservice architecture: Suitable for the dismantling of complex business models. Each microservice is a small, independent business unit that can be deployed, expanded, upgraded, etc. independently.
5. Multi-level cache architecture: The performance and response speed of the system can be improved through multi-level caching.
6. Sub-database and sub-table architecture: To solve the bottleneck of a single database, by splitting a database into multiple databases and storing data in separate tables according to certain rules, the performance and scalability of the system can be improved.

The above are several common system architectures. Different architectures are suitable for different business scenarios and needs, and need to be selected and designed according to the actual situation.

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