By: -.- (blarg.delete@this.mailinator.com), March 17, 2021 2:43 pm
Room: Moderated Discussions
Gabriele Svelto (gabriele.svelto.delete@this.gmail.com) on March 17, 2021 8:53 am wrote:
> One of the reasons why they took off is that you don't know beforehand which part of a given system
> will become a bottleneck as the number of users/transactions/whatever scales up. Micro-services tend
> to be inefficient but they are amenable to horizontal scaling which is what made them popular.

That may sound good in theory, but it's not really how things work, and it's not the reason they took off. Yes, microservices can be used for horizontal scaling, but it's not unique to it, and most non-microservice architectures also support the concept.

In fact, I'd argue microservices often limits scalability. For one, if the network is the bottleneck, adding more network traffic certainly won't help you.
For many workloads that microservices cover, the persistence layer (i.e. the database) tends to be a serious bottleneck, and microservices rarely improve the situation and often make it worse.

So whilst one may say they don't know the bottlenecks of the system, by choosing a microservice architecture, they've actually implicitly made assumptions on where the bottlenecks will lie.
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        x86 - why unite when you can fragment?Konrad Schwarz2021/03/17 10:19 AM
    x86 - why unite when you can fragment?anonon2021/03/15 07:37 AM
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