Amazon Web Services is one of the most popular cloud environments. Galera Cluster is one of the most popular MySQL clustering solutions. This is exactly why you’ll see many Galera clusters running on EC2 instances. In this blog post, we’ll go over five performance tips that you need to take under consideration while deploying and running Galera Cluster on EC2. If you want to run regular MySQL on EC2, you’ll find these tips still useful because, well, Galera is built on top of MySQL after all. Hopefully, these tips will help you save time, money, and achieve better Galera/MySQL performance within AWS.

Choosing a good instance size

When you take a look at the instance chart in the AWS documentation, you’ll see that there are so many instances to choose from. Obviously, you will pick an instance depending on your application needs (therefore you have to do some benchmarking first to understand those needs), but …

Student questions are always interesting! They get me to think and to write. The question this time is: “How do I write a Bash Shell script to process multiple MySQL script files?” This post builds the following model (courtesy of MySQL Workbench) by using a bash shell script and MySQL script files, but there’s a disclaimer on this post. It shows both insecure and secure approaches and you should avoid the insecure ones.

It seems a quick refresher on how to use arrays in bash shell may be helpful. While it’s essential in a Linux environment, it’s seems not everyone masters the bash shell.

Especially, since I checked my …

I recently released version 0.1.10 of my library django-mysql, for which the main new feature was a backend for Django’s cache framework called MySQLCache. This post covers some of the inspiration and improvements it has, as well as a basic benchmark against Django’s built-in DatabaseCache.

TL;DR - it’s better than DatabaseCache, and if you’re using MySQL, please try it out by following the instructions linked at the end.

Why bother?

Django’s cache framework provides a generic API for key-value storage, and gets used for a variety of caching tasks in applications. It ships with multiple backends for popular technologies, including Redis and Memcached, as well as a basic cross-RDBMS DatabaseCache. The DatabaseCache is recommended only for …

Taxonomy upgrade extras:  mysql performance monitor monitoring fpmmm maas performance monitor mpm

FromDual has the pleasure to announce the release of the new version 0.10.4 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download …

FromDual has the pleasure to announce the release of the new version 0.10.4 of its popular Database Performance Monitor for MySQL, MariaDB, Galera Cluster and Percona Server fpmmm.

You can download fpmmm from here.

In the inconceivable case that you find a bug in fpmmm please report it to our Bug-tracker.

Any feedback, statements and testimonials are welcome as well! Please send them to feedback@fromdual.com.

This release contains various minor bug fixes and improvements.

New installation of fpmmm v0.10.4

Please follow our mpm installation …

Yesterday I was able to present to the Portland MySQL Users Group two presentations that are important foundations for effective development with MySQL.

Download Architecture Presentation

Download Development Presentation

With 26 years of architectural experience in RDBMS and 16 years of MySQL knowledge, my extensive …

In an earlier post titled Using Perl to send tweets stored in a MySQL database to twitter, I showed you a way to use MySQL to store tweets, and then use Perl to automatically send your tweets to twitter.

In this post, we will look at automatically sending a “thank you” to people who retweet your tweets – and we will be using Perl and MySQL again.

Just like in the first post, you will need to register your application with twitter via apps.twitter.com, and obtain the following:

consumer_key
consumer_secret
access_token
access_token_secret

One caveat: twitter has a rate limit on how often you may connect with your application – depending upon what you are trying to do. See …

Hi, everyone. Just a quick note here to let you all know that we’ve just added Debian 8 support to our Apt repos. We have the latest MySQL Server 5.6 ready for you, as well as the latest 5.7 Development Milestone, and more of our products for Debian 8 are in our QA pipeline as […]

Fedora comes with vim and gedit installed but the gedit installation is bare bones. You can update gedit to include supplemental Plug-ins with the following yum command as the root user:

yum install -y gedit-plugins

It generates the following log file:

Loaded plugins: langpacks, refresh-packagekit
mysql-connectors-community                                  | 2.5 kB  00:00     
mysql-tools-community                                       | 2.5 kB  00:00     
mysql56-community                                           | 2.5 kB  00:00     
pgdg93                                                      | 3.6 kB  00:00     
updates/20/x86_64/metalink                                  |  14 kB  00:00     
updates                                                     | 4.9 kB  00:00 …

Welcome to MySQL QA Episode 2: Build a MySQL Server – Git, Bazaar (bzr), Compiling, and Build Tools

In this episode you’ll learn how to build Percona Server and/or MySQL Server for QA purposes & more in this short 25 minute tutorial.

In HD quality (set your player to 720p!)

To watch the other episodes in this series, see the MySQL QA & Bash Linux Training Series post. If you missed MySQL QA Episode 1, it was titled “Bash/GNU Tools & Linux Upskill & Scripting Fun.” You are watch it here.

If you have any questions or comments, please leave them below.

The post …