Open Source Code metrics

A few months ago, I found Ohloh. The Ohloh site checks out an open source project code and display several useful metrics like LOC count, the number and geographical location of developers, and an estimated project cost based on an average programmer salary. Check out the Ohloh page for one of my favorite project ServiceMix
You can also embed the metrics into your blog like this from the Shoal project:

Microsoft Surface

Es increible lo que se puede hacer con un touch screen, sin mouse y sin teclado. El Microsoft Surface no es solamente eso, sino que tambien es multi-touch como el iPhone y tiene 5 camaras para reconocer objetos.
Quiero uno!!!

Youtube architecture and scalability

I'm fascinated by the talk given by Cuong Do about the YouTube architecture, its issues and maturity phases. The trick for getting the mysql replication faster is an incredible example of lateral thinking.



It blows my mind!

Architect forum from Microsoft

I've been invited to join an architect forum organized by Microsoft. Fortunately is open minded and technology agnostic not Microsoft centric.
Kudos to Martin Salias and Ezequiel Glinsky for the great discussion topics. Highly recommended to attend if you are a software architect.

OSWorkflow book review

The book is selling well and getting positive reviews both from peers and reviewers like Geertjan

Java application clustering made easy

Ever wanted to share the state and emit signals between two applications? and how about a variable number of application instances? you know how hard it is to do it efficiently, in a multicast way, etc.
And how about recognizing an instance failure? All those features are hard to write and harder to test.
Shoal comes to the rescue. This framework derived from the GlassFish project, provides cluster communication, join and failure signals, messaging and data sharing.

My latest technical article in java.net

http://today.java.net/pub/a/today/2007/09/06/instant-user-tracking-with-clickstream.html