> Would I trade a 1000% performance hit on write ops in exchange for the ability to scale out over 10000% as many cores simply? Every day of the week.
And this is, in my opinion, the best possible argument in favor of using Clojure. Off the top of my head, I remember Rich Hickey saying something about how he developed Clojure due to his irritation at working on a huge project that wrote code to handle thousands upon thousands of interconnected nodes. That makes perfect sense.
However... writing a web app with Clojure, at least to me, doesn't.
> However... writing a web app with Clojure, at least to me, doesn't.
Why not? I'm serious here, if you're serving thousands of clients in a web app, why wouldn't you want parallelism? I mean, sure at small loads you don't need it, but what about scaling up?
Also, I find using compojure for web app development to be an absolute dream. I might need to get out more (my day job is java web apps), but I love the ability to iterate rapidly in the repl on a web app without having to restart my JVM.
> I'm serious here, if you're serving thousands of clients in a web app, why wouldn't you want parallelism?
For the same reason you don't do parallel by default for every loop you write in java. It's overkill. You can successfully argue that multiple service calls across a network need to be parallel, but this is relatively little to do with a desire to serve many clients and a lot more to do with responsiveness. (a noble goal)
> but I love the ability to iterate rapidly in the repl on a web app without having to restart my JVM
HTML and mixed services > (any combination of java technologies you can dream up to serve web apps)
And this is, in my opinion, the best possible argument in favor of using Clojure. Off the top of my head, I remember Rich Hickey saying something about how he developed Clojure due to his irritation at working on a huge project that wrote code to handle thousands upon thousands of interconnected nodes. That makes perfect sense.
However... writing a web app with Clojure, at least to me, doesn't.