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The server itself seems to be written in Java: https://github.com/http-kit/http-kit https://github.com/http-kit/http-kit I wonder what the factors were for not

by stiff 14y ago

The server itself seems to be written in Java: https://github.com/http-kit/http-kit https://github.com/http-kit/http-kit I wonder what the factors were for not writing it in Clojure if Clojure is the target platform.

shenedu 14y ago
author here: Java part: 1. Java NIO's performance is amazing: event driven r/w bytes 2. maintain state machine when parsing HTTP from bytes buffer need many local variables, I get used to do it in a C style code. Clojure: I like this language. It's brilliant. So I write a fast http server/client for it. Clojure is also write in JAVA, great interoperation
- nqzero 14y ago
  can the http-kit server be used from java directly ? last i looked, all the async java webservers seemed limited to 1000s of connections, which largely defeats the purpose. i'm willing to give up the servlet spec if needed
  - shenedu 14y ago
    Hey, http-kit can be used to from java directly: https://github.com/http-kit/http-kit/blob/master/test/java/org/httpkit/server/MultiThreadHttpServerTest.java https://github.com/http-kit/http-kit/blob/master/test/java/o... Not recommended! The API is very lowlevel. Maybe you can try to tweak the max allowed open file to a larger value. The default is about 1024, that how you just get 1000(I guess). Jetty is quite good at concurrency, you can double check it. Why not try Clojure? Your web dev's productivity increase by few times instantly.
    - nqzero 14y ago
      looks good. my application (database-ish) is in java and i haven't worked on any bindings yet. just trying to put together a demo that shows off the concurrency
ptaoussanis 14y ago
To clarify: the core server is indeed written in Java, but it's written to conform to the standard Clojure web server (Ring [1]) spec and to be consumed by Clojure applications. The public API is all Clojure-side and essentially uses the Java parts as an implementation detail. This kind of interop is easy to do with Clojure and is usually motivated by performance. The best way of describing http-kit would probably be as a "Clojure web server written in Java". [1] https://github.com/ring-clojure/ring https://github.com/ring-clojure/ring

by stiff 14y ago

shenedu 14y ago

author here: Java part: 1. Java NIO's performance is amazing: event driven r/w bytes 2. maintain state machine when parsing HTTP from bytes buffer need many local variables, I get used to do it in a C style code. Clojure: I like this language. It's brilliant. So I write a fast http server/client for it. Clojure is also write in JAVA, great interoperation

nqzero 14y ago
can the http-kit server be used from java directly ? last i looked, all the async java webservers seemed limited to 1000s of connections, which largely defeats the purpose. i'm willing to give up the servlet spec if needed
- shenedu 14y ago
  Hey, http-kit can be used to from java directly: https://github.com/http-kit/http-kit/blob/master/test/java/org/httpkit/server/MultiThreadHttpServerTest.java https://github.com/http-kit/http-kit/blob/master/test/java/o... Not recommended! The API is very lowlevel. Maybe you can try to tweak the max allowed open file to a larger value. The default is about 1024, that how you just get 1000(I guess). Jetty is quite good at concurrency, you can double check it. Why not try Clojure? Your web dev's productivity increase by few times instantly.
  - nqzero 14y ago
    looks good. my application (database-ish) is in java and i haven't worked on any bindings yet. just trying to put together a demo that shows off the concurrency

ptaoussanis 14y ago

To clarify: the core server is indeed written in Java, but it's written to conform to the standard Clojure web server (Ring [1]) spec and to be consumed by Clojure applications. The public API is all Clojure-side and essentially uses the Java parts as an implementation detail. This kind of interop is easy to do with Clojure and is usually motivated by performance. The best way of describing http-kit would probably be as a "Clojure web server written in Java". [1] https://github.com/ring-clojure/ring https://github.com/ring-clojure/ring