Microservices characteristics

The best way to understand how important microservices are in real life is knowing some platforms that decided to evolve and use microservices thinking about the future and making the maintenance and scalability easier, faster, and more effective:

Next, we will look at the disadvantages of the microservices architecture. When asking developers about this, they agree that the major problem with microservices is the debugging on the production server.

Debugging an application based on microservices can be a little tedious when you have hundreds of microservices in your application and you have to find where a problem is; you need to spend time looking for the microservice that is giving you the error. Each microservice works like an individual machine, so to look at a specific log you have to go to the specific microservice. Fortunately, there are some tools to help us out with this subject by getting the logs from all the different microservices in your application and putting them together into a single location. In the subsequent chapters, we will look at these kinds of tools.

Another disadvantage is that it is necessary to maintain every single microservice as an entire server; in other words, every single microservice can have one or more databases, logs, different services, or library versions, and even the code can be in a different language, so if it is difficult to maintain a single server and doing it with hundreds will waste money and time.

Also, the communication between microservices is very important---they have to work like clocks, so communication is essential for the application. To do this, the communication between the development teams will be necessary to tell each other what they need and also to write good documentation for each microservice.

A good practice to work with microservices is having everything automatized or at least everything possible. Maybe the most important part is the deployment. If it is necessary to deploy hundreds of microservices, it can be difficult. So, the best way is to automatize these kinds of tasks. We will look at how to do this in the subsequent chapters.