Microservice architecture design pattern-(1) Problems with monolithic architecture

Monolithic architecture

• advantage
  • Simple
  • Testing is intuitive
  • Easy to deploy
  • Simple horizontal scaling, i.e. running multiple instances
• question
  • complex
    • As the system becomes larger, it becomes more complex
  • Development is slow
    • If you change a small point, you need to package and run the entire project.
  • Difficult to expand
    • Some modules require simple configuration, some require advanced hardware configuration, and the entire project is a configuration
  • No fault isolation
    • If a module fails, the entire project will fail.
  • Difficulty in upgrading technology
    • When trying new technologies, you need to change all relevant places, which is very costly.

In my opinion, the increase in complexity makes it difficult for monoliths to

• Complexity is made up of elements, and the relationships between them
• More elements
  • Everyone disagrees
    • Some have high requirements, some have low requirements
• There are more relationships between elements
  • If you want to make changes, I will be affected.
  • You hang up, I hang up too
  • If you want to update, I should update accordingly.
  • Programmers just want to change you, but they have to get to know your brothers and sisters too