April 17, 2014

Choosing a MySQL HA Solution – Post-Webinar Q&A

Thanks to everyone who was in attendance on 05 June 2013 for my “Choosing a MySQL HA Solution” webinar. If you weren’t able to make it but are interested in listening to the presentation, it’s currently up and available for viewing over at percona.com. My apologies if we weren’t able to get to your question […]

Choosing a MySQL HA Solution – MySQL Webinar: June 5

Selecting the most appropriate solution for a MySQL HA infrastructure is as much a business and philosophical decision as it is a technical one, but often the choice is made without adequately considering all three perspectives.  When too much attention is paid to one of these aspects at the cost of the others, the resulting […]

CentOS 5.8 users: your UTF-8 data is in peril with Perl MySQL

CentOS 5.8 and earlier use Perl module DBD::mysql v3.0007 which has a bug that causes Perl not to flag UTF-8 data as being UTF-8.  Presuming that the MySQL table/column is using UTF-8, and the Perl MySQL connection is also using UTF-8, then a correct system returns: PV = 0x9573840 "\343\203\213 \303\250"\0 [UTF8 "\x{30cb} \x{e8}"] That’s a Devel::Peek inside a Perl scalar variable which […]

Percona MySQL University in Montevideo and Buenos Aires

Following our Percona MySQL University event in Raleigh,NC Percona MySQL University comes to South America! We’ll have a Full day FREE MySQL Technical Educational events in Montevideo on February 5th, 2013 and Buenos Aires on February 7th. I’m very excited to bring these events to MySQL Community in Uruguay and Argentina. This is my first […]

FOSDEM 2013: MySQL And Friends Community Dinner

Just like previous years, the ‘MySQL And Friends’ community is gathering to have a dinner on the Saturdaynight of FOSDEM. This time it is on February 2nd, 2013. This year, it will not be an Italian restaurant, but more a Belgian style restaurant, about 10 minutes walk from the FOSDEM event. Mirabelle: http://www.mirabelle.be/index.php?lang=en Chaussée de Boondael, […]

A closer look at Percona XtraDB Cluster for MySQL

The Web And PHP Magazine just published an article describing Percona XtraDB Cluster written by Liz van Dijk and Kenny Gryp. It is a pretty high-level introduction to the technology, so definitely give it a read if you’ve been wanting to give it a closer look. Go to their website http://www.webandphp.com and download Issue number 9 for free! […]

Speaking at Percona Live London 2012: Choosing Hardware for MySQL

Another Percona Live event is coming up, this time in London on the 3rd and 4th of December. I’m sure it is going to be as awesome as it was last year. This year, I will talk about ‘Choosing Hardware For MySQL‘. Of course, the most important hardware components will be covered: CPU, Memory, Network, […]

FOSDEM 2013: MySQL & Friends Devroom CfP is open !

2013 is near… and so is the next FOSDEM edition ! This year again, MySQL will be represented by its Community. If you want to discuss with friends of MySQL it’s the place to be in February ! Like every year, FOSDEM takes place the first week-end of February in Brussels. We will again have […]

Introducing the pmp-check-mysql-status Nagios Plugin

Most of the Nagios plugins included with the Percona Monitoring Plugins are purpose-built for specific scenarios that I found in my research to be frequent, severe, or subtle causes of problems in MySQL systems. They are intentionally not generic because I wanted to focus on doing one thing with each plugin, and doing it excellently. […]

How to diagnose errors in the MySQL error log

I frequently see questions about how to understand the nature of errors in MySQL’s error log. Now, there is a lot of complexity to this — the flowchart would be quite large, as with any nontrivial piece of software. But there is one particular class of errors that is relatively easy to diagnose, if you […]