Does the use of microservices increase the complexity of identifying and fixing errors in the system?

Yes, using microservices generally increases the complexity of identifying and fixing errors. In monolithic applications, all components are in a single process, which simplifies tracing and debugging. In a microservices architecture, the system is divided into many independent services that communicate over a network. This leads to such difficulties:

• Distributed nature of errors: issues can occur at the interfaces between services.
• The need for centralized logging and tracing (e.g., using OpenTracing, Zipkin).
• Difficulties in reproducing errors due to asynchrony and network delays.

To effectively troubleshoot errors in microservices, distributed tracing, log aggregation, and monitoring are often used.