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But why? Microservices do have some good advantages in some scenarios
Problem is that companies are using them for all scenarios. It’s often their entire tech stack now, with kubernetes.
It’s similar to the object oriented hype that came before it, where developers had to write all their programs in a way so they could be extended and prepared for any future changes.
Everything became complex and difficult to work with. And almost none of those programs were ever extended in any significant way where object oriented design made it easier. On the contrary, it made it far more difficult to understand the program since you had to know which method was called in which object due to polymorphism when you looked at the code. You had to jump around like crazy to see what code was actually running.
Now with kubernetes, it’s all about making the programs easier to scale and easier to develop for the developers, but it shifts the complexity to the infrastructure needed to support the networking requirements.
All these programs now need to talk over the network instead of simply communicating in the same process. And with that you have to think about failure scenarios, out of order communication, missing messages, separate databases and data storage for different services etc.
As an operator, this who thread reads like a bunch of devs who don’t understand networking and refuse to learn.
Sure, for smaller applications or small dev teams it doesn’t make sense. But for so many other things it does.
The problem is that all projects start small, and frankly most of them die small. Aiming for microservices architecture right away is a surefire way to get the project killed before anyone would benefit off of the microservices.
I always lump microservices architecture as premature optimization, one that should be used when you’re maxed out of resources or everything is too spaghetti.
I love the idea. And I even pitched it for a specific project. But I had to eat humble pie when the devops nerds threw more servers at the problem and it worked better than I expected.
Dude just start with a monolith and part it out as you scale. Of course microservices are a waste of time if you build them right off the bat.
It’s just not worth it until your monolith reaches a certain size and complexity. Micro services always require more maintenance, devops, tooling, artifact registries, version syncing, etc. Monoliths eventually reach a point where they are so complicated that it becomes worth it to split it up and are worth the extra overhead of micro services, but that takes a while to get there, and a company will be pretty successful by the time they reach that scale.
The main reason monoliths get a bad rap is because a lot of those projects are just poorly structured and designed. Following the micro service pattern doesn’t guarantee a cleaner project across the entire stack and IMO a poorly designed micro service architecture is harder to maintain than a poorly designed monolith because you have wildly out of sync projects that are all implemented slightly differently making bugs harder to find and fix and deployments harder to coordinate.
I still have to find a name for this disease, but it’s somewhat like “you’re neither Google nor Netflix”.
Everything has to be Scalable™ even if a raspberry pi could serve 200 times your highest load.
I’m currently involved with a “micro service system”, that has very clear, legal requirements, so we know exactly, how much load to expect. At most, a few thousand users, never more than 100 working at the same time on very simple business objects. Complex business logic, but technically almost trivial. But we have to use a super distributed architecture for scalability…
I’m guessing you already got an answer for that though when you asked about it.
Could be either “oh you’re right let’s not do that”, or “because we want to design for horizontal scalability rather than vertical in case the demand grows later”, or “the client has requested and it’s paying for this feature” and so on.
It’s because they think it’s what you’re doing for a large project. Simple as that. There’s no future demand, the client doesn’t care, and I’m not right because they said so.
