I just wanted to let you all know that MHA for MySQL (Master High Availability Manager and tools for MySQL) version 0.53 has been released.

Yoshinori Matsunobu discusses the release in much more detail here:

http://yoshinorimatsunobu.blogspot.com/2012/01/mha-for-mysql-053-released.html

The full MHA 0.53 changelogs are here:

http://code.google.com/p/mysql-master-ha/wiki/ReleaseNotes

MHA 0.53 can be downloaded from here:

http://code.google.com/p/mysql-master-ha/downloads/list

And if you would like support for MHA, simply contact SkySQL:

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SCALE is going to top off a day of MySQL session on January 20th with a Birds of a Feather Session at 18:00 in the Century AB room. Come meet the MySQL Community Team and lets talk MySQL!

SCaLE is the premier open source event in Southern California and the dedicate staff works hard to keep the price down to $70 including an amazing Expo. For those of you out of the Los Angeles area, the event is at the LAX Hilton and you can take the shuttle buss and never leave the hotel (except to visit Carl’s Junior next door for a Western Bacon Cheeseburger) or fight traffic on the infamous 405 freeway.

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MySQL Tech Tour Event – Santa Clara, CA
Thursday, February 9, 2012
http://www.oracle.com/go/?&Src=7314534&Act=247&pcode=WWMK11042736MPP125

MySQL Tech Tour Event – El Segundo, CA
Wednesday, February 8, 2012
http://www.oracle.com/go/?&Src=7314534&Act=249&pcode=WWMK11042736MPP127

MySQL Tech Tour Event – Raleigh, NC
Thursday, February 2, 2012
http://www.oracle.com/go/?&Src=7314534&Act=248&pcode=WWMK11042736MPP126

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Yesterday Oracle announced that the latest release of Oracle Database Firewall introduced support for MySQL Enterprise Edition.

To address threats like SQL injections, Oracle Database Firewall establishes a defensive perimeter around databases, while monitoring and enforcing normal application behavior in real-time to help prevent SQL injection attacks as well as unauthorized attempts to access sensitive information.

Oracle Database Firewall represents a new addition to the growing list of MySQL Enterprise Oracle Certifications.

Numerous organizations are using both the Oracle database and MySQL, typically relying on MySQL for their web-based and departmental applications. Oracle MySQL Enterprise Certifications make it easier, faster …

Yesterday Oracle announced that the latest release of Oracle Database Firewall introduced support for MySQL Enterprise Edition.

To address threats like SQL injections, Oracle Database Firewall establishes a defensive perimeter around databases, while monitoring and enforcing normal application behavior in real-time to help prevent SQL injection attacks as well as unauthorized attempts to access sensitive information.

Oracle Database Firewall represents a new addition to the growing list of MySQL Enterprise Oracle Certifications.

Numerous organizations are using both the Oracle database and MySQL, typically relying on MySQL for their web-based and departmental applications. Oracle MySQL Enterprise Certifications make it easier, faster …

Interesting take on what managers are thinking: http://quickbase.intuit.com/blog/2012/01/09/10-things-your-boss-isnt-telling-you/

Disk I/O is still a common source of performance issues, despite modern cloud environments, modern file systems and huge amounts of main memory serving as file system cache. Understanding how well that cache is working is a key task while investigating disk I/O issues. In this post, I’ll show the activity of the ZFS file system Adaptive Replacement Cache (ARC).

There are often more statistics available than you realize (or have been documented), which may certainly be true with the ARC. Apart from showing these statistics, I’ll also show how to extend observability using dynamic tracing (DTrace). These tracing techniques are also applicable to any kernel subsystem. This is an advanced topic, where I’ll sometimes dip into kernel code.

Architecture

For background on the ZFS ARC, see the paper ARC: A Self-Tuning, Low Overhead …

I am an Oracle database administrator and over the last few years I have found myself becoming more involved in MySQL database administration.

I knew absolutely nothing about MySQL and had to figure it out using books and blogs.

I realised there must be many other people in my position so I developed a presentation titled “MySQL: the least an Oracle DBA needs to know”. My aim was to get people up to speed with the basics as quickly and simply as possible, mostly through live demonstrations.

I have had the privilege of presenting this for Oracle user groups in the UK, USA, New Zealand and Finland. It’s a great feeling as the audience moves from sceptical to excited, with lots of “Can it do ….?” questions at the end of the presentation.

To accompany the presentation I wrote this article. I hope you find it useful. …

You probably saw that Vadim blogged about the first alpha release of Percona XtraDB Cluster. Just in time: now I can talk about it at my High Availability talk in Percona Live DC! If you’re coming, be sure to catch us in the hallway and ask those specific questions that won’t be addressed in a general survey talk on HA solutions.

Just wanted to say I'm so happy: http://www.mysqlperformanceblog.com/2012/01/09/announcement-of-percona-x...

And also that this is a significant moment in the evolution of MySQL - things will never be the same again.