For the first time, MySQL includes Dtrace probes in the 6.0 release. On platforms that support Dtrace you can still find out a lot about what's happening, both in the Operating System kernel and in user processes, even without probes in the application. But carefully placed Dtrace probes inserted into the application code can give you a lot more information about what's going on, because they can be mapped to the application functionality. So far only a few probes have been included, but expect more to be added soon.

I decided to take the new probes for a spin. Oh, and rather than do it on a Solaris system, I figured I'd give it a shot on my Intel Core 2 Duo MacBook Pro, since MacOS X 10.5 (Leopard) supports Dtrace.

To begin with I pulled down and built MySQL 6.0.5 from Bit Keeper, thanks to some help from Brian Aker. …

The first persons I met at the UC this year were David Minor and his daughter. David told me he was interested in the Certification Exams and bravely took the plunge on his first exam Tuesday morning. I am very happy to announce he has earned his Associate, Developer and DBA Certifications. Congratulations to David and all the others who took exams.

Thursday is the last day for conference attendees to take their exams for only $25. We will open the exam room at 8:30a and let people take exams until 3:00p. So save $175 or wait until the 2009 Users Conference.

Today we still had problems for those who had not set up their account with Pearson VUE BEFORE taking their exams. Since we hang the certification exams off the data from those accounts. The results below do not include the thirty plus exams waiting for this data.

…

After many years where it’s been under debate, Monty now really says he knows what MySQL is named after, and it is after My.

MySQL has placed itself in the middle of a rising furor over its allegedly diminished commitment to open source. To be fair, it has only itself to blame.

It all started with a disgruntled ex-MySQL employee, Jeremy Cole. Cole declared that MySQL's sky was falling because it was to be releasing certain parts of the next version of its database as closed-source software. Marten Mickos responded that he had misunderstood (when, in fact, he had understood very well), it went to Slashdot (where it was of course misconstrued even further), and we're left with a …

Since the recovery from my recent outage, I’ve noticed that none of the normal feed sites where my posts normally show up caught the last post, so this is a test post to see what’s going on, if it was a temporary glitch, or what.

If you didn’t see the post linked above, please read it if you’re happy with your web host. I’m looking for a new one :-/

Hopefully you can’t get enough of the UC08 videos (and thanks to Sheeri for the link with the full Jonathan keynote video), so Zack has managed to get some most posted.

This morning, we learned what it meant to be a pirate in terms of patents, copyright and now politics with the Pirate Party. Don’t let the scary name put you off - these guys are about making all of us consumers (of software, video, audio, books, etc.) more in control of information. Please support these guys by visiting Piratpartiet.se.

Next we had the Scalability Panel with representatives from Facebook, Fotolog, Sun, YouTube, …

For the first time, MySQL includes Dtrace probes in the 6.0 release. On platforms that support Dtrace you can still find out a lot about what's happening, both in the Operating System kernel and in user processes, even without probes in the application. But carefully placed Dtrace probes inserted into the application code can give you a lot more information about what's going on, because they can be mapped to the application functionality. So far only a few probes have been included, but expect more to be added soon.

I decided to take the new probes for a spin. Oh, and rather than do it on a Solaris system, I figured I'd give it a shot on my Intel Core 2 Duo MacBook Pro, since MacOS X 10.5 (Leopard) supports Dtrace.

To begin with I pulled down and built MySQL 6.0.5 from Bit Keeper, thanks to some help from Brian Aker. …

For the first time, MySQL includes Dtrace probes in the 6.0 release. On platforms that support Dtrace you can still find out a lot about what's happening, both in the Operating System kernel and in user processes, even without probes in the application. But carefully placed Dtrace probes inserted into the application code can give you a lot more information about what's going on, because they can be mapped to the application functionality. So far only a few probes have been included, but expect more to be added soon.

I decided to take the new probes for a spin. Oh, and rather than do it on a Solaris system, I figured I'd give it a shot on my Intel Core 2 Duo MacBook Pro, since MacOS X 10.5 (Leopard) supports Dtrace.

To begin with I pulled down and built MySQL 6.0.5 from Bit Keeper, thanks to some help from Brian Aker. …

Liveblogging: Extending MySQL by Brian “Krow” Aker

Brian wins the award for “most frequent great quotes during a talk”.

Before MySQL 5.1 a UDF was the only way to extend MySQL.

All you need in a UDF is: init() execute() deinit()

my_bool id3_parse_init(UDF_INIT *initid UDF_ARGS *args, char *message)

UDF_ARGS tell you about incoming args
char *message is the output that might return
args->arg_count is the # of args

WARNING: use STRICT mode in MySQL, otherwise there are tons of silent failures.

“When you work on databases you start to put everything in databases. Tip, don’t put a DVD into a database, because really long BLOBs aren’t actually supported….”

In MySQL 5.1, you can now install plugins (example is memcache_servers plugin):

mysql> INSTALL PLUGIN memcache_servers SONAME …