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0 pointsvbezhenar4y ago0 comments

I'm personally interested in reducing RAM consumption. Right now Spring Boot application with very little functionality (like few REST endpoints, talking to database) easily eats few hundreds of megabytes RAM. Similar node.js application eats few dozens of megabytes RAM. Cost of using Java is high, when there are plenty of those services, especially when we're talking about resilient services and launching 2-3 instances of every service.

Fast startup time is just a good bonus.

That's for my use-case. Lambdas, obviously, demand fast start-up.

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smallerfish4y ago

To be fair, that's spring boot. It's a bloated ecosystem. If you write using lean libraries (which you'd want to do for lambda anyway) then you're looking at 0.1-0.3s jvm startup times. If that's supposed to be serving a user then it may be taking too long, but in that case use an EC2 instance rather than trying to be serverless.

gozzoo4y ago

what woud be a lean alternative for microservices to spring boot?

vbezhenarOP4y ago

The most lean and interesting alternative IMO is Helidon SE. It's backed by Oracle and uses very sane approach.

The most pragmatic alternative IMO is Quarkus. I don't really like it, but it seems to be the most popular alternative to Spring and probably will become standard de facto, unless Spring will jump ahead with some revolutionary changes. It's backed by Red Hat and seems to have the most momentum.

The best approach IMO is not here yet. Frameworks, mentioned above, rely heavily on reactive architecture. It's just not needed with Project Loom, so there's plenty of unnecessary complications. They even rewriting JDBC drivers.

I'm going with Quarkus for now, but I'm waiting for ideal framework to appear.

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diroussel4y ago

Micronaut is worth a look

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