Rainbows! is an HTTP server for sleepy Rack applications. It is based on unicorn, but designed to handle applications that expect long request/response times and/or slow clients.
Rainbows! is designed for the odd, corner-case requests that unicorn is poorly suited for.
More scalable concurrency models introduce additional complexity that unicorn users and developers are uncomfortable with for the common cases.
- Designed for Rack, the standard for modern Ruby HTTP applications.
- Built on unicorn, inheriting its process/socket management features such as transparent upgrades and Ruby configuration DSL.
- As with Unicorn, it is able to stream large request bodies off the socket to the application while the client is still uploading. Since Rainbows! can handle slow clients, this feature is more useful than it is with Unicorn.
- Combines heavyweight concurrency (worker processes) with lightweight concurrency (Events/Fibers/Actors/Threads), allowing CPU/memory/disk to be scaled independently of client connections.
- Designed for:
- 3rd-party APIs (to services outside your control/LAN).
- OpenID consumers (to providers outside your control/LAN).
- Reverse proxy implementations with editing/censoring (to upstreams outside your control/LAN).
- BOSH (with slow clients).
- HTTP server push.
- Long polling.
- Reverse AJAX.
Developer: Rainbows! contributors
License: GNU General Public License v3.0
Rainbows! is written in Ruby. Learn Ruby with our recommended free books and free tutorials.
Return to Ruby Application Servers Home Page
|The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions.|
|Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information.|
|Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS.|
|Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. This is a new series.|
|New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux.|
|Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities.|
|Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users.|
|Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.|
|Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal.|
|Saving Money with Linux looks at how you can reduce your energy bills running Linux.|
|Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.|
|Now and Then examines how promising open source software fared over the years. It can be a bumpy ride.|
|Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.|
|Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery.|
|Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers.|
|Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series.|
|These best free books accelerate your learning of every programming language. Learn a new language today!|
|These free tutorials offer the perfect tonic to our free programming books series.|
|Linux Around The World showcases usergroups that are relevant to Linux enthusiasts.|
|Stars and Stripes is an occasional series looking at the impact of Linux in the USA.|