In which cases is it advisable to split a monolithic application into microservices?

Dividing a monolithic application into microservices is advisable in the following cases:

• Growth in complexity and scalability: when the application becomes too large and complex to support and develop within a single codebase.
• Independent development and deployment: if different parts of the application require frequent changes and updates, microservices allow for their independent development and deployment.
• Different technological stacks: when different modules require the use of different technologies or programming languages.
• Load-based scaling: if different components have varying loads, microservices enable scaling only the necessary parts.
• Improved fault tolerance: a failure of one microservice does not lead to the failure of the entire application.

However, transitioning to microservices requires additional efforts in organizing communication, monitoring, and management, so it should be done when the benefits outweigh the costs.