What are the advantages of microservices architecture? Has it always been possible to make services completely independent?

Advantages of microservices architecture:

• Scalability: Each service can be scaled independently depending on the load.
• Development flexibility: Different teams can work on different services using suitable technologies.
• Fault tolerance: The failure of one service does not lead to the collapse of the entire system.
• Rapid release: Individual services can be updated without deploying the entire system.
• Clear separation of responsibilities: Each service is responsible for its own business logic.

However, making services completely independent is not always possible. Dependencies often arise:

• Shared databases or data schemas.
• Interdependencies through APIs and contracts.
• Challenges with transactions and data consistency.
• Infrastructure dependencies (e.g., shared message queues).

Thus, microservices strive for independence, but in practice, there are always certain points of integration and dependencies.