… and really testing the replication code path for CREATE TABLE.

So, for a very long time now, Drizzle has been using a protobuf based structure to describe the structure of tables. The idea was to be able to have engines rather painlessly generate this structure themselves (which several now do). A secondary idea was to use this structure itself for CREATE TABLE (in progress, and embedded_innodb does in fact does only use the table message for its CREATE TABLE codepath). The third idea was to just put the table protobuf message into the replication stream instead of the CREATE TABLE statement (i.e. a SQL string). This means that you could (easily) write a replicator to a DBMS with different SQL syntax, or to a system that doesn’t speak SQL at all.

The final step, to reduce duplicated code …

Tokutek is pleased to announce immediate availability of TokuDB for MySQL, version 4.1.1. It is ideally suited for delivering fast response times for complex / high-volume Web applications that must simultaneously store and query large volumes of rapidly arriving data:

• Social Networking
• Real-time clickstream analysis
• Logfile Analysis
• eCommerce Personalization
• High-speed Webcrawling

TokuDB v4.1.1 replaces TokuDB v4.1.0 and is recommended for all users. (We found a bug in v4.1.0 and have withdrawn it from our website). The new version has all of v4.1.0′s new features, including support for SAVEPOINT and an even better Fast Loader. As always, this release uses our high-performance Fractal Tree™ indexing to provide a unique combination of capabilities:

• 10x-50x faster indexing …

Around these days last year I presented `securich` for the first time. It was at froscon 2009, barely knowing anybody, spending my 27th birthday in a hostel in Germany fixing some bugs before the actual presentation on a 10 inch netbook (my mac had some problems at the time but thats another story :)). I got a beating, verbally of course! Many of the people listening to the presentation were expecting something else since another presentation was supposed to be running at that time, some even started dozing off (encouraging? not really hehe) but after a few minutes people started getting interested and asking all kind of questions. “This awesome” I thought to myself, “questions are good, it means people are understanding and want to know more”, but the more they learnt the more they realised how young securich was as a tool, lacking fundamental features like …

Everybody is very interested in understanding the Oracle message about MySQL.  Oracle is responding with a "MySQL Sunday"   and a number of excellent presentations throughout the week in San Francisco at Oracle Open World.  My session on MySQL is: Session S316920 - The Ultimate Bootstrap for MySQL on Windows There are also a number of excellent old MySQLers and friends presenting like: Sarah

This post is the fourth of a series that started here.

From the previous of this series, we now have resources configured but instead of starting MySQL, Pacemaker invokes a script to start (or restart) the EC2 instance running MySQL. This blog post describes the instance restart script. Remember, I am more a DBA than a script writer so it might not be written in the most optimal way.

First, let's recap what's the script has to perform (the full script is given below).

1. Kill the MySQL EC2 instance if running
2. Make sure the MySQL EC2 instance is stopped
3. Prepare the user-data script for the new MySQL EC2 instance
4. Launch the new MySQL instance
5. Make sure it is running
6. Reconfigure local heartbeat
7. Broadcast the new MySQL …

Four Perconians (perconites?) will be at OpenSQL Camp in Sankt Augustin, Germany this weekend presenting talks on:

• Recovery of Lost or Corrupted InnoDB Tables
• Keep your MySQL backend online no matter what
• XtraDB -- InnoDB on steroids
• Xtrabackup for MySQL

If you would like to stop by and say hello, we are Aleksandr, Istvan, Morgan and Aurimas (pictures here).

If you can make the (approximate) location, but not the date, we also have training in Frankfurt in three weeks time.

Entry posted by Morgan Tocker | 3 comments

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The DOAG ("Deutsche ORACLE Anwendergruppe e.V.") is the German association of users of Oracle products. In November 2010 (16th-18th), they will hold their annual Oracle Users Conference 2010, which will take place in Nuremberg, Germany.

This event is quite an institution – it has been established more than 20 years ago already. This year, there will be more than 400 sessions by over 300 speakers. For the first time, this year's conference will also have a dedicated stream of sessions about MySQL and I'm happy to announce that I'll be there, too, giving an overview of the various MySQL Replication Technologies as well as a glimpse into a MySQL DBA's toolchest.

Here's the full list of MySQL sessions, as of today:

Tuesday 2010-11-16

• 10:00-10:45: …

In just two days the OpenSQL Camp Europe (hosted by the excellent FrOSCon) will kick off!

We've had a few last-minute changes to the schedule, as some speakers could not make it due to visa or family issues. But we managed to keep all slots filled on both days and I think we've come up with a very nice program! In addition to the two sessions I already had, I've volunteered to take over Giuseppe's talk about Shooting from the Hip. MySQL at the Command Line.

The most up-to-date version of the schedule is on the OpenSQL Camp Wiki, I expect the remaining changes to be reflected on the …

The kind folks at O'Reilly sent me MySQL High Availability by Charles Bell, Mats Kindahl and Lars Thalmann . In summary, the book is awesome. Personally I didn't think that Replication was enough of a feature in mySQL to fill up 500+ pages about it, BUT, they did and not with fillers or info that is NOT actually important to you as the end designer. In Mark Callaghan's forward he states that this book "adequately" explains MySQL replication, this is a huge low-ball, I dare say if you did not look at the replication code (prior to row-based replication there was not a lot of it) your questions can be answered with this book. There are three parts to this book: Replication (roughly 50% of the book), Monitoring and Disaster Recovery, then finally High Availability Environments. Each part is well written and accurate. …

Oh time is flying! - This weekend it is already time for FrOSCon, the Free and Open source Conference in St. Augustin close to Western Germany's former capitol Bonn. The conference consists out of a main track and different side tracks, like the PHP developer room and the OpenSQL sub-conference.

In the PHP developer room I will give an overview over things that happened at MySQL, especially in regards to PHP in recent times. My colleague Ulf Wendel will then go and talk about plugins to mysqlnd - the MySQL native driver for PHP -  in detail.

In the OpenSQL Camp track you can find other interesting MySQL related talks which will, unfortunately, not leave you with enough time to watch …