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Just Another Web Server
Ruby
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README.rdoc

JAWS

Just Another Web Server. Obviously there are already a few in the Ruby eco-system, so I'll just list the design goals:

  • Have a concurrency model that's predictable and easy to understand It doesn't use EventMachine and uses a small and manageable thread pool to serve requests. Specifically, it can handle a concurrency of N with N threads, but doesn't accept any connections above that concurrency. This is so that it doesn't drop connections if it gets overloaded, nor does it advertise a concurrency level (like 950) that in a practical web app is just impossible.

  • Have a pluggable listen/accept system Things like Swiftiply and CloudBridge, which have unusual means of accepting incoming connections, currently monkey patch mongrel to enable their behaviour. This server allows you to override the standard accept behaviour so these systems can work without fragile object surgery.

  • Be built for rack right from the start This server talks rack and only rack. It doesn't expect to be used as a standalone server.

  • Be capable of being run in pure ruby, but provide better performance if possible As things move forward, having a pure ruby implementation is important for enabling people to work on and improve ruby software. This server uses the http_parser gem for http parsing, which provides a first class implementation in ruby and (will eventually) support using a C extension that conforms to the same interface, as set out by the specs in that gem, so that it can achieve the same or better parsing performance as mongrel.

Note on Patches/Pull Requests

  • Fork the project.

  • Make your feature addition or bug fix.

  • Add tests for it. This is important so I don't break it in a future version unintentionally.

  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

  • Send me a pull request. Bonus points for topic branches.

Copyright

Copyright © 2010 Graham Batty. See LICENSE for details.

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