Want to know more about recent MySQL ads? If so, and if you are closed to Paris, join us for the MySQL Tech Day scheduled for May 22nd, 2014. 

You will have an opportunity to hear the latest MySQL news, InnoDB new features and MySQL Performance Schema given by the key MySQL experts. Also this event is constructed as the interactive one, so you will have a chance to discuss and ask questions at this free event. Please review the detailed agenda below and here (in French).

Event Details:

Date: May 22, 2014

Time: 10:00 - 17:30 

Place: Oracle France, 15 Boulevard Charles de Gaulle, 92715 Colombes Cedex, Paris, France

Entrance fee: Free of charge

Registration: Please register …

Going to Percona Live and presenting MySQL Fabric gave me the opportunity to meet a lot of people and get a lot of good feedback. I talked to developers from many different companies and got a lot of great feedback that will affect the priorities we make, so to all I spoke to I would like to say a great "Thank you!" for the interesting discussions that we had. Your feedback is very valuable.

It was very interesting to read the comments on MySQL Fabric on MySQL Performance Blog. The article discuss the current version of MySQL Fabric distributed with MySQL Utilities and give …

ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of the benchmarks carried out by me and ScaleArc co-founder and chief architect, Uday Sawant.

The goal of this benchmark was to identify ScaleArc’s overhead using a real-world application – the world’s most popular (according to wikipedia) content management system and blog engine: WordPress.

The tests also sought to identify the benefit of caching for this type of workload. The caching parameters represent more real-life circumstances than we applied in the sysbench performance tests – the goal here was not just to saturate the cache. For this reason, we created an artificial WordPress blog with generated data. …

If you did not read my first blog post about Mark Callaghan’s (@markcallaghan) benchmarks as documented in his blog, Small Datum, you may want to skim through it now for a little context.

——————-

On March 11th, Mark, a former Google and now Facebook database guru, published an insertion rate benchmark comparing MySQL outfitted with the InnoDB storage engine with two NoSQL alternatives — basic MongoDB and …

Installing Apache2 With PHP5 And MySQL Support On Ubuntu 13.10 (LAMP)

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on anUbuntu 13.04 server with PHP5 support (mod_php) and MySQL support.

“How do I learn PHP, MySQL, GII, CSS, HTML, OOP, and all that quickly, without becoming confused or frustrated but still get to do the cools stuff?” I get this question on a very frequent basis and until last Friday, I had to suggest a number of ways of pulling together all the pieces together. But it still lacked a comprehensive theme and flow. Then last Friday at LonestarPHP, the LonestarPHP organizers teamed with PHPWomen,to provide a foundations track that covered all the above and more. Davey Shafik, Elizabeth Smith, Matt Frost, and Michelle Sanver put together an amazing day of learning with PHPBridge for a crowd of about 40 novices,

The material is under a Creative Commons License and can be used by other events. The idea was borrowed form RailsBridge and …

I have recently been involved in diagnosing the reasons behind OOM invocation that would kill the MySQL server process. Of course these servers were primarily running MySQL. As such the MySQL server process was the one with the largest amount of memory allocated.

But the strange thing was that in all the cases, there was no swapping activity seen and there were enough pages in the page cache. Ironically all of these servers were CentOS 6.4 running kernel version 2.6.32-358. Another commonality was the fact that vm.swappiness was set to 0. This is a pretty much standard practice and one that is applied on nearly every server that runs MySQL.

Looking into this further I realized that there was a change introduced in kernel 3.5-rc1 that altered the swapping behavior when “vm.swappiness=0″.

Below is the description of the commit that changed “vm.swappiness=0″ behavior, together with the diff:

$ git show …

It’s quite exciting to see the amount of MariaDB books out there (first GA release of software: February 2010).

From left-to-right:

1. MariaDB Crash Course (August 2011)
2. Getting Started with MariaDB (October 2013)
3. …

Benchmarking lets you test how a system responds when it is given work to do, and removes the guesswork from your performance tuning efforts. The workloads you use when benchmarking are very different from real life deployments, which can be extremely variable. If you remember this, benchmarking is extremely useful, enabling you to measure current performance and determine the performance impact of any changes. Such changes could be the addition of new hardware or opening up your application to more users.

Benchmarking is one of the topics that you can learn more about by taking the MySQL Performance Tuning course. You can take this course in the following formats:

• Training-on-Demand: Start training within 24 hours of registration, following lecture …

So I recently realized that I have not yet talked much about MySQL partitions.
Many good blog posts on MySQL partitions already exists and I have listed a few below.

• http://glynndba.blogspot.com/2009/10/rolling-time-based-partitions.html
• http://www.mysqlperformanceblog.com/2010/12/11/mysql-partitioning-can-save-you-or-kill-you/
• http://datacharmer.blogspot.com/2010/05/two-quick-performance-tips-with-mysql.html
• …