What are the main challenges that can be encountered when implementing a microservices architecture?

When implementing microservices architecture, the following challenges often arise:

• Managing distributed transactions and data consistency. In monoliths, ensuring atomicity of operations is simpler, whereas in microservices, patterns like Saga are used.
• Complexity of orchestration and service interaction. It is necessary to design APIs, communication protocols, error handling, and timeouts.
• Monitoring and logging. Logs and metrics need to be collected centrally to track the state of multiple services.
• Configuration and version management. Service updates must be compatible; otherwise, failures may occur.
• Network latency and reliability. Calls between services are slower than intra-process calls, so fault tolerance must be considered.
• Deployment organization and CI/CD. Each service requires a separate build and deployment process.

These challenges require a thoughtful approach to architecture, automation, and support tools.