Below are advantages of implementing a microservices-based architecture.
An application failure is easier to diagnose in a microservices-based architecture because microservices can be disabled one at a time, or stubbed out, until the location and cause of the fault is determined. [1]
As a system grows more complex and requires more developers or developer teams to work on it, the changes of environment contention increase. That is, changes made to one part of the system may have to wait for release until changes made to another part are resolved. Using a microservices-based architecture in this case would be more advantageous, because it would allow teams to make simultaneous changes to different and functionally separate services.
In monoliths, a failure in one part of the monolith necessarily affects all parts of it. In microservices-based architectures, a failure in one microservice does not prevent the other microservices from functioning. Furthermore, replacing or repairing the faulty microservice is easier because it can be independently redeployed.
Betts, T. (2020). To microservices and back again - Why Segment went back to a monolith. Retrieved from https://www.infoq.com/news/2020/04/microservices-back-again/ To Microservices and Back Again - Why Segment Went Back to a Monolith↩︎