In this presentation, Ian Flint, Director of Operations for Bix, Yahoo!’s online contest service, tries to explain the infrastructure and architecture employed by Yahoo! to keep going a multitude of servers running of different platforms and offering different services.
In this interview taken by InfoQ’s Ryan Slobojan, Dan Farino, Chief Systems Architect at MySpace, talks about the system architecture and the challenges faced when building a very large online community. Because MySpace is built almost entirely on the .NET Framework, Dan explains how a .NET product scales on hundreds of servers.
Kenai is a new project hosting platform from Sun. It offers a comprehensive set of services for open source projects, including source code management and issue-tracking, and most notably, it is built with JRuby on Rails.
Continuous integration is an agile practice in which each code change committed is automatically built and tested, reducing the cost of bugs by catching many of them as soon as they are introduced. Today, ThoughtWorks released Cruise, extending continuous integration to application testing and deployment. Cruise runs on Windows, Mac OS X and Linux, and includes support for .NET, Java, and Ruby.
Agile brings to organizations, among other things, small teams coupled with constant change. Navigating this effectively requires understanding what this means to Software Configuration Management practices. The July edition of CM Journal's "cm//crossroads" is dedicated to helping people meet this challenge successfully.
Subversion, a mature open source version control system used by many open source projects, has just released version 1.5. New features include: merge tracking, sparse checkouts, and conflict resolution in the command line client.
Many agree that the minimum set of Agile practices includes disciplined version control. In particular, when several development teams work in the same codebase, to ensure there's a clean, releasable version at the end of every iteration, they need a plan. Henrik Kniberg's proven scheme is a useful guide for teams. This detailed paper includes the entire method and even a cheatsheet.
There has been a lot of discussion on various agile forums and blogs about the difference between 'Done' and 'Shippable'. It might sound like both mean the same, however discussions on the lists and various blogs suggest that these are still widely misunderstood, mis-used terms. Here's a roundup of recommendations about how to handle "Done."
The idea of continuous production has been around for some time, with Cal Henderson revealing in 2005 that Flickr releases code to production about every 30 minutes. InfoQ investigates continuous production and explores the effects it has on the product lifecycle, and in turn the host organisation.
A recent article published in IBM developerWorks talks about automating Continuous Integration and Code Inspection tasks in a build process using open source tools. It explains how to install and configure Hudson server with Subversion, Ant, and software inspection tools like FindBugs and PMD to create a build process with continuous feedback on test results and defects.
Spring 2.5: Drop-in upgrade for 2.0 with OSGi bundles, full annotation-based configuration & AspectJ
The first release candidate of Spring 2.5, formerly known as version 2.1, was recently released. InfoQ spoke with Spring framework lead developer Juergen Hoeller to learn more about this release.
The new Ruby Gems release 0.9.4.5 adds optimizations and new features, such as automatic installation of platform gems. Also, it's compatible with Ruby 1.9, making it fit for inclusion in the standard Ruby 1.9 release.
FiveRuns, an enterprise Rails company, have built an installer for Ruby and associated packages.
A discussion in the JRuby space is resurfacing: Should the project move to Java 5. Is it worth breaking compatibility with Java 1.4? Using languages features like Annotations and Enums would be useful, as well as and not having to use a backport of the Concurrency libs. We look at the pros and cons.
Jeff Attwood outlined a new programmatic Certification programme, WOMM (Works On My Machine), as an humorous mechanism for highlighting broken builds in a continuous build environment.