I'm in the middle of working through the agenda for the upcoming Open Source Business Conference (May 22-23, 2007, San Francisco), and wanted to solicit outside input.

OSBC has made great strides for its 2007 show, if for no other reason than I'm actually listening to what other people want on the agenda. :-) OSBC's Advisory Board includes: Larry Augustin, Zack Urlocker (VP of Marketing, MySQL), Bill Hilf (General Manager, Platform Strategy, Microsoft), Mark Radcliffe (Partner, DLA Piper Rudnick Gray Cary, LLP), Tim Golden (SVP, Linux Engineering, Bank of America), Andrew Aitken (President, Olliance Group), and Robin Vasan (General Partner, Mayfield).

The board has been very active in shaping the conference, making it into a much more CIO-friendly event than in years past.

You'll see this emphasis in the preliminary (very) draft below of the conference. Some of the sessions …

This is how Marten Mickos (MySQL CEO) described the relationship between MySQL and the open source community at MySQL Camp. MySQL Camp held at Google over last weekend, was an useful opportunity to listen and talk to developers in the broad MySQL ecosystem (including Oracle VP) as well as MySQL users.

The most interesting talk was about the efforts made by MySQL folks to attract and reward MySQL community contributors. They have made significant efforts in this direction - MySQL forge, Planet MySQL, MySQL winter of code, MySQL community server and availability of MySQL work logs (roadmap)

We, at Zmanda, also understand the need to have …

As mentioned in a previous post, the poll for moderating http://groups.yahoo.com/group/mysql/ will be closed soon. At present, the role will be awarded to one volunteer who would like to share the role.

I’ve been using account_location for a couple of applications recently. It’s a really nice way to give individual ‘clients’ of an application their own domain and when we come to scaling up, it’s a really easy way of splitting customers across several hosts. So, yeah, very nice. And it’s dead easy to deploy in the first instance – a couple of DNS records along the lines of:

@ IN A 1.2.3.4
* IN A 1.2.3.4

There you go, every host in that domain points to 1.2.3.4.

However, it’s a pest for setting up in your development environment. OK, so you can edit /etc/hosts and add an entry for every single account you happen to create. This hinders development for me — each domain has to be unique, so whenever I want to create a new account, I have to do so in Rails, …

We're setting new XAMPP versions together and would now ask you to take a look at the beta versions of the upcoming XAMPP release.

New in this version of XAMPP: MySQL (5.0.27), PHP (5.2.0), phpMyAdmin (2.9.1) and a Japanese translation.

XAMPP BETA versions are always for testing purposes only. There will be no upgrade packages from and to beta versions. To all testers: Many thanks in advance!!

Update 18.11.: Since yesterday you also find two new versions of XAMPP for Solaris as XAMPP BETA releases, one for Solaris 10 SPARC, and one for x86. These versions are the last step to finalized releases of XAMPP for Solaris. Both versions are compiled for 64-bit systems.

You find the beta version at our special XAMPP BETA download area.

Monty gave us a quick overview of next generation of MyISAM. It is set to include:

• New data disk format
• Transaction support
• multi-versioning
• row level locking and escalation to table level locks. (interesting)
• bitmap indexes and new table scanning optimizing indexes with up to 1000x times performance.

No details of time frame were given for delivery, however development is well underway.

The news is out that Java is free. I suspect that 20-30 bloggers are going to steal that title (Free as in Java) so I wanted to try to get my blog post out first. Tim Bray has the news and apparently SUN is going to have an announcement on this tomorrow morning.

In a former life I was a major contributor to java.apache.org which was the precursor to Jakarta and participated in Tomcat and Ant when they were released. I was also the lead developer and project founder of Jetspeed and invented the Portlet API *which have now essentially evolved into widgets). I've also contributed to GNU Classpath and GCJ. Long story short I have a vested interest in seeing Java …

The first MySQL Camp is over. A whopping 223 registered attendees, most of whom were overwhelmingly active participants. Plenty of valuable feedback. Constant attention by Ken Jacobs (who assured the audience that “Oracle would never do anything to harm MySQL“), VP of Oracle. Superb Google hosting, facilities, food. Lots of beer by Proven Scaling. Fantastic sessions. What more could one hope for?

Thank you, Google! Thank you, Jay! Thank you, MySQL campers!

I’ve talked about disk space allocation previously, mainly revolving around XFS (namely because it’s what I use, a sensible choice for large file systems and large files and has a nice suite of tools for digging into what’s going on).Most people write software that just calls write(2) (or libc things like fwrite or fprintf) to do file IO - including space allocation. Probably 99% of file io is fine to do like this and the allocators for your file system get it mostly right (some more right than others). Remember, disk seeks are really really expensive so the less you have to do, the better (i.e. fragmentation==bad).

I recently (finally) wrote my patch to use the xfsctl to get better allocation for NDB disk data files (datafiles and undofiles).
patch at:
http://lists.mysql.com/commits/15088

What the?

Well this is the inheritance diagram of the Item Class in the MySQL 5.1 Source tree, nicely documented using the Doxygen tool as mentioned by Jay in his presentation at MySQL Camp.

Jay started the Community Doxygen Project on the Forge to improve the level of commenting enabling a better platform for the community to contribute MySQL server code changes.

At this early stage David Shrewsbury is working on fine tuning initial documentation examples for QA and review. You can check out the Status Page of automated commenting conversion.

You can see the present documentation of MySQL 5.1 source …