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This weekend, Steve, Hunter, Paul and I took part in Spawnfest, a 48-hour Erlang programming event. Our team name was SMELLS LIKE BEAM SPIRIT. Here we are on Sunday evening: What a bunch of tools… The Erlang VM lets you inspect all aspects of a running node, examine running processes, explore process hierarchies, and profile running systems. This is typically done from the Erlang console, but if y

During my experiments with rebar, I made a simple example app for testing upgrades and releases. This article will walk you through using rebar to create an application, lay it out properly, package and deploy it, and create and install new versions without downtime. The code accompanying this article is in various branches of github.com/RJ/erlang_rebar_example_project. N.B. The OTP Design Princip

A Million-user Comet Application with Mochiweb, Part 1 In this series I will detail what I found out empirically about how mochiweb performs with lots of open connections, and show how to build a comet application using mochiweb, where each mochiweb connection is registered with a router which dispatches messages to various users. We end up with a working application that can cope with a million c

Hey RJ, what are you up to? I'm currently learning Rust. I want to build a realtime multiplayer game of asteroids, with good UDP netcode, compiled to WebAssembly. I'm experimenting with the Bevy Engine.

Please Note: this was written January 2009 - see the comments for updates and additional information. A lot has changed since I wrote this. Perhaps you’re considering using a dedicated key-value or document store instead of a traditional relational database. Reasons for this might include: You're suffering from Cloud-computing Mania. You need an excuse to 'get your Erlang on' You heard CouchDB was