It’s not uncommon to promote a server from slave to master. One of the key things to protect your data integrity is to make sure that the promoted slave is permanently disconnected from its old master. If not, it may get writes from the old master, which can cause all kinds of data corruption. MySQL [...]
Disconnecting a replication slave is easier with MySQL 5.5+ (RESET SLAVE vs. RESET SLAVE ALL)
April 17, 2013 By 2 Comments
Is your MySQL buffer pool warm? Make it sweat!
April 16, 2013 By 6 Comments
Today’s blog post diving into the waters of the MySQL buffer pool is a cross-post from Groupon’s engineering blog, and is Part 1 of 2. Thank you to Kyle Oppenheim at Groupon for contributing to this project and post. We’ll be posting Part 2 on Thursday. I’ll be at the Percona Live MySQL Conference and [...]
10 years of MySQL User Conferences
April 11, 2013 By 6 Comments
In preparing for this month’s Percona Live MySQL Conference and Expo, I’ve been reminiscing about the annual MySQL User Conference’s history – the 9 times it previously took place in its various reincarnations – and there are a lot of good things, fun things to remember. 2003 was the year that marked the first MySQL user conference [...]
Understanding the maximum number of columns in a MySQL table
April 8, 2013 By 5 Comments
This post was initially going to be two sets of polls: “What is the maximum number of columns in MySQL?” and “What is the minimum maximum number of columns in MySQL?”. Before you read on, ponder those questions and come up with your own answers… and see if you’re right or can prove me wrong! [...]
My Sessions at Percona Live MySQL Conference and Expo 2013
April 1, 2013 By Leave a Comment
As is typical at the beginning of every April, many of us who submitted talks to the Percona Live MySQL Conference and Expo are wondering why we submitted so many. I had 3 official talks selected, including one that is a 6-hour tutorial, as well as a BoF. Here’s the highlights: Percona XtraDB Cluster / [...]
Network at the Percona Live MySQL Conference and Expo
March 28, 2013 By Leave a Comment
We’re very pleased with the speaker lineup for the Percona Live MySQL Conference and Expo. We have outstanding MySQL experts speaking on a variety of topics during the breakout sessions and tutorials. And the keynote speakers are all top notch, MySQL technology and industry experts who will share their views of the ecosystem. Beyond the [...]
MySQL 5.6 Compatible Percona Toolkit 2.2 Released
March 25, 2013 By 2 Comments
A new Percona Toolkit series has been released: Percona Toolkit 2.2 for MySQL 5.6. Several months in the making and many new features, changes, and improvements make this a great new series. It replaces the 2.1 series for which we plan to do only one more bug fix release (as 2.1.10) then retire. 2.2 is [...]
5 Percona Toolkit Tools for MySQL That Could Save Your Day: April 3 Webinar
March 22, 2013 By Leave a Comment
On April 3 at 10 a.m. PST, I’ll be giving a webinar titled “5 Percona Toolkit Tools for MySQL That Could Save Your Day.” In this presentation you’ll learn how to perform typical but challenging MySQL database administration tasks. My focus will be on the following tools: pt-query-digest, to select the queries you should try [...]
Percona Live MySQL Conference and Expo 2013: It feels like 2007 again
March 21, 2013 By Leave a Comment
I actually don’t remember exactly whether it was in 2006, 2007 or 2008 — but around that time the MySQL community had one of the greatest MySQL conferences put on by O’Reilly and MySQL. It was a good, stable, predictable time. Shortly thereafter, the MySQL world saw acquisitions, forks, times of uncertainly, more acquisitions, more forks, [...]
Facebook at Percona Live MySQL Conference and Expo and Advanced Registration Ending Soon
March 19, 2013 By Leave a Comment
Facebook is a major user of MySQL and has pushed the performance limits of the technology. Their MySQL experts have deep, hands on knowledge of the technology. I’m pleased to welcome Mark Callaghan, Software Engineer for Database Infrastructure at Facebook, back again this year to the Percona Live MySQL Conference & Expo to share his [...]
