With a platform that serves millions of people every day, we have a number of services that need to query MySQL. GitHub.com is a large Rails application with a lot of queries generated though ActiveRecord.

Occasionally we will get a slow query appear in our exception tracker Haystack:

I’ve mentioned previously that we tag queries so we can see exactly where they come from.

When we want to investigate the cause of a slow query we can use our /explain tool with Hubot which you can find here.

Being able to explain queries in chat may seem like a neat toy but it actually provides insight for everyone in the room. This is a great way to discuss the problem and learn from each …

ConFoo is currently looking for web professionals with deep understanding of PHP, Java, Ruby, Python, DotNet, HTML5, Databases, Cloud Computing, Security and Mobile development to share their skills and experience at the next ConFoo. Submit your proposals between August 25th and September 22nd.

ConFoo is a conference for developers that has built a reputation as a prime destination for exploring new technologies, diving deeper into familiar topics, and experiencing the best of community and culture.

• ConFoo 2015 will be hosted on February 18-20 in Montreal, at the Hilton Bonaventure Hotel.
• We take good care of our speakers by covering most expenses including travel, accommodation, lunch, full conference ticket, we also make you you have an …

A common concern in the MySQL community is how to best implement high availability for MySQL. There are various built-in mechanisms to accomplish this such as Master/Master and Master/Slave replication using binary logs as well as FOSS solutions such as Galera and Tungsten, just to name a few. Often times, IT Managers and DBAs alike opt to avoid implementing a third party solution due to the added administrative overhead without fully evaluating the available solutions. In today’s blog post, I would like to describe the process for configuring a Master/Slave topology and switching to a Master/Master topology with Tungsten Replicator.

Tungsten Replicator is a well known tool that has gained much acclaim in the area of MySQL Enterprise database implementation, however, many teams tend to stay away from the implementation to avoid over-complicating the replication topology. I have listed and described all of the steps required to …

MySQL for Visual Studio 1.2.x recently became a GA version. One of the main features included in this version was the new MySQL ASP.NET MVC Wizard. This wizard allows the creation of a new ASP.NET MVC application using a MySQL existing database and a data entity model with Entity Framework 5 or 6 version. In this video you will see this feature in action and will show you how to generate a complete MVC application that includes authentication, registration and browsable pages for each table in your MySQL database without any code needed.

There’s been a lot of talk about Docker for running processes in isolated userspace (or the cloud for that matter) lately. Virtualization is a great way to compartmentalise applications  and processes however the overhead of virtualization isn’t always worth it – in fact, without directly attached storage IO degradation can seriously impact performance. The solution? Perhaps Docker… With its easy to use CLI as well as the lightweight implementation of cgroups and kernel namespaces.

Without further ado, I present a step-bystep guide on how to build a MariaDB 5.5 Galera Cluster on Ubuntu 14.04. The same guide can probably be applied for MariaDB versions 10+ however I’ve stuck with 5.5 since the latest version of MariaDB Galera Cluster is still in beta.

So we start off with modifying the “ufw” firewall policy to accept forwarded packets and perform a “ufw” service restart for good measure:

What do the acronyms I18N or L10N stand for? What do they mean for developers of mobile applications in particular?

I hosted a session about localizing mobile applications at Developer Week 2014 in Nuremberg. It covers — among other things — text, numbers, date and time, images, and other localizable resources.

See the codecentric blog for slides and some more details.

The post and the slides are also available in German.

We are pleased to announce the second MySQL User Group meeting in Seoul, South Korea.

This time Daesang Information & Technology sponsors venue and snack. Please find more information below.

Date & Time: 29th Aug, 2014, 7pm to 9 pm

Venue: TOZ Kangnam tower, 2nd floor

Agenda:

1. MySQL Fabric intro

2. MySQL Cluster intro & demo

3. Select MUG Staff

See more details

We are looking forward to talking to you! 

At the moment, dbForge Studio for MySQL allows you to create a connection to Sphinx Search Engine. Due to technical restrictions, a warning message appears in some cases. The reason the message appears is because, there is no possibility to define that the connection happens to  Sphinx SE. We requested the Sphinx SE developers team to fix […]

OpenStack Trove Day

I just returned from a week in Cambridge, Massachusetts where I was attending the OpenStack Trove Day and the Trove mid-cycle meetup, both sponsored by the great folks at Tesora.

I am relatively new to the OpenStack and Trove arenas so this was a fantastic opportunity for me to learn more about the communities, the various components within OpenStack, and what part Trove plays. I found the entire event very worthwhile – I met a lot of key people in the community, learned more about Trove and its potential, and in general felt a great energy and excitement surrounding Trove and OpenStack as a whole.

There were more than 120 attendees at Trove Day. That is almost four times the initial estimate! I …

OpenStack Trove Day

I just returned from a week in Cambridge, Massachusetts where I was attending the OpenStack Trove Day and the Trove mid-cycle meetup, both sponsored by the great folks at Tesora.

I am relatively new to the OpenStack and Trove arenas so this was a fantastic opportunity for me to learn more about the communities, the various components within OpenStack, and what part Trove plays. I found the entire event very worthwhile – I met a lot of key people in the community, learned more about Trove and its potential, and in general felt a great energy and excitement surrounding Trove and OpenStack as a whole.

There were more than 120 attendees at Trove Day. That is almost four times the initial estimate! I think I …