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Yaws (web server)

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Title: Yaws (web server)  
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Subject: Erlang (programming language), Zope, Open Telecom Platform, Mnesia, Mongrel2
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Yaws (web server)

The LYME and LYCE software bundles are based on Erlang and comprise Yaws. They are composed entirely of free and open-source software
Developer(s) Claes Wikström
Stable release 1.98 / November 4, 2013 (2013-11-04)[1]
Written in Erlang
Operating system Cross-platform
Type Web server
License BSD licence

Yaws (Yet another web server) is a web server written in Erlang by Claes (klacke) Wikström. Yaws can be embedded into other Erlang-based applications or run as a regular standalone web server.[2]

Because Yaws uses Erlang's lightweight threading system, it performs well under high concurrency. A load test conducted in 2002 comparing Yaws and Apache found that with the hardware tested, Apache 2.0.39 with the worker MPM failed at 4,000 concurrent connections, while Yaws continued functioning with over 80,000 concurrent connections.[3]

See also


  1. ^ "Releases · klacke/yaws · GitHub". Retrieved 2014-04-28. 
  2. ^ Steve Vinoski article at the IEEE Internet Computing review, July/August 2011
  3. ^ Ghodsi, Ali. "Apache vs. Yaws". Retrieved January 17, 2007. 

External links

  • Official website
  • Interview with YAWS developer Claes Klacke Wikstrom (OGG or MP3)
  • ErlyWeb – MVC-pattern web framework for Yaws
  • Erlang Web – MVC-pattern web framework Yaws and Inets Erlang/OTP application
  • Nitrogen – An event-driven Web 2.0 framework for Erlang that runs on Yaws, Mochiweb, and Inets
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