yahns is a multi-threaded, non-blocking network application server designed for low _idle_ power consumption.
It is primarily optimized for applications with occasional users which see little or no traffic.
yahns currently hosts Rack/HTTP applications, but may eventually support other application types. Unlike some existing servers, yahns is extremely sensitive to fatal bugs in the applications it hosts.
This is free and open source software.
- _zero_ wakeups when all clients are idle.
- Idle client connections may live forever if there is no FD pressure.
- Suitable for slow clients, fast clients, or a mixture of both.
- HTTP/0.9 support.
- HTTP/1.1 persistent connections and pipelining.
- HTTPS for HTTP/1.1 support.
- Decodes HTTP chunked encoding for requests.
- Parses HTTP/1.1 trailers in requests.
- Supports streaming responses with lazy buffering for slow clients.
- Optional streaming input for fast clients.
- Host multiple applications with different settings.
- Uses epoll/kqueue to scale to many idle connections.
- Abuses epoll/kqueue as a load balancer between threads within a process.
- Optional multi-process support (in addition to threads).
- Fairly balances new clients between multiple processes (on Linux).
Website: yhbt.net/yahns
Support:
Developer: yahns contributors
License: GNU General Public License v3.0
yahns is written in Ruby. Learn Ruby with our recommended free books and free tutorials.
Related Software
| Ruby Application Servers | |
|---|---|
| Puma | Concurrent web server for Ruby and Rack |
| Phusion Passenger | Web server and application server for Ruby, Python and Node.js |
| Falcon | Asynchronous Rack-compatible engine for fast, scalable web traffic |
| pitchfork | Preforking HTTP engine designed for resilience and steady throughput |
| iodine | Lightweight HTTP and WebSocket service built for demanding loads |
| unicorn | HTTP server for Rack applications |
| Itsi | High-performance web serving with efficient request handling |
| Rainbows! | HTTP server for sleepy Rack applications based on Unicorn |
| Agoo | Fast HTTP platform with WebSocket support and very low overhead |
| yahns | Sleepy, multi-threaded, non-blocking application server for Ruby |
Read our verdict in the software roundup.
 LinuxLinks helps you discover the best free and open source software for Linux. Explore our extensive collection of recommended applications, including alternatives to popular proprietary software.We also publish software reviews, Linux tutorials, hardware reviews, free programming books and articles covering the wider open source community. Browse our Linux resources to discover more. Know a useful free and open source Linux application we haven't covered? Suggest a program for inclusion. Has your software been featured on LinuxLinks? Display one of our Featured on LinuxLinks badges on your website or GitHub README. |
Please read our Comment Policy before commenting.