Something that come to mind is the new threads added in InnoDB. To bad they show up first in 5.6.2+. We would have needed them now.. But isn’t that always the case? We are facing the trouble of grooming a table from loads of historical data. It’s running InnoDB, so we all know it’s kinda expensive to do massive deletes from it. Especially if you’re not doing it on your PK. We were debating how to setup a groomer job on a table like this, and no matter how we do it, the only feasible way is to delete by PK. Massive data deletes will still cause for performance degradation when the pages become to dirty. This has of course changed in the new additions to InnoDB in 5.6.2+. Deleting by PK is still the fastest way, and will be faster when we one day switch to 5.6.x. Read more about the new InnoDB stuff here: InnoDB Page Cleaner Thread

It was for sure a very rewarding conference, but one may debate the absence of MySQL itself (Oracle). Normally there is a lot going on, and a lot of announcements from MySQL. In this case Oracle owns MySQL. I don’t know if they are trying to make a statement, not showing up and providing information to the community. Or are they to self absorbed, and want to pull Open database people to join on Oracle World? I don’t know, and I really hope it’s not the latter. They seem to put a lot of money and effort into continued development of MySQL and InnoDB.

Monty did a bald move in his keynote, and later had to appologize in a public blog post: monty says. Me and Tobias Asplund had a decent chat with him at the SkySQL dinner, and there is a lot of new interesting stuff happening in MariaDB. A lot of effort has been put into subquery optimization and the execution plans are now better than ever. Hopefully Oracle will not be too scared to adopt those patches. We will have to try MariaDB here at Marin to see if we’ll get any performance improvements running subqueries. It’s not a production test just to calm those worried souls.

I enjoyed Yoshinori Matsunobo’s Tutorial. There was a lot of refreshing material, but also some new things I have not been able to test before. Good stuff! Check out Matsunobos blog

I also enjoyed many of the facebook talks. It’s very giving to see how they attack some of the problems others never see. The amount of servers and data those guys are handling is insane. Their data drift spotting stuff was awesome as well.

I am surprised by the amount of people looking for DBA’s or data architects. Almost all talks or keynotes said they were hiring.

All in all, it was a great conference. I am almost looking forward to the next one.

As you may already know i will be holding a session together with Anders Karlsson from MySQL/SUN about MySQL HA. We will walk through different solutions and mention pros and cons of them. I will also present how we solved the HA situation at bwin games ab.

Those of you who still have not booked their tickets and entry to MySQL UC, i have a surprise for you! Book your entry now and use this promotion code “mys09fsp” and you will get 20% off your total cost! Isn’t that awesome? Just enter the code at the signup/booking page and you will receive the discount.

Looking forward to see you guys at MySQL UC in Santa Clara. Write me a email if you are going and we’ll try to hook up. Probably there will be a “nordic night” as last year. If you are from around the Nordic/Scandinavian region, make sure to join us. We’ll probaly be going out and eat something nice and just talk random stuff.

So, what should you do now if you didn’t already do it? Go to http://www.mysqlconf.com and register for this years MySQL User Conference in Santa Clara / California.

Cheers

The whole California visit was not only work. I managed to squeeze in a week of vacation to it. Traveled around NoCal, did some shopping and met some friends.

Edit, i found a recording of Dick Hardts presentation:http://blip.tv/file/981411

Will try to keep something here updated on the way…