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The Ruby and Rails community linklog

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  Today

Be aware about the out-of-memory killer

One of the most important things for applications is stability. There are various hosting platforms that give you virtual servers, where you can run multiple services. There is no limit to the number of processes so it is up to you how much of their resources will be used. However, exceeding all available RAM memory can result in poor stability or even a server crash. This article gives you some basic knowledge about the out-of-memory system state. [more inside]

"yamlsh": Interactive REPL for authoring YAML files

I released a YAML authoring interactive REPL called yamlsh. Multi-language support (for typical I18n translation files) and cross-files consistency checks are in the works. Check it out!

The first thing I tried in yamlsh was ls -R. That does not work… …
The first thing I thought when using this was, “awesome idea.” Thanks Franck! …

Ruby Module

An exceptionally productive web application framework, Ruby on Rails is optimized for programmer delight and sustainable output. Read more...

Rack: Writing middleware

Second part of my series about Rack. This time, the topic is writing Rack middleware. You can read the article here.

RubyNEAT in the making...

I am on my “sabbatical” right now to add some powerful new features to the only Ruby implementation of Neural Evolution of Augmenting Topologies (NEAT). It’s aggressive and ambitious, but I am adding ES HyperNEAT, modular networks, and phenotype queuing . [more inside]

Mina (with roles)

Mina is a competitive fast deployer and server automation tool. But it lacks multi server roles (for now) as we have in Capistrano. A write to achieve the same with a sample gist can be read here

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