It's my pleasure to be presenting at SCaLE 12X on the subject of real-time data loading from MySQL to Hadoop.  This is the first public talk on work at Continuent that enables Tungsten Replicator to move transactions from MySQL to HDFS (Hadoop Distributed File System).  I will explain how replication to Hadoop works, how to set it up, and offer a few words on constructing views of MySQL data using tools like Hive.

As usual with replication everything we are doing on Hadoop replication is open source.  Builds and documentation will be publicly available …

There is a good article over at Re-Code by ex-Microsoft VP Steven Sinofsky called "The Four Stages of Disruption".  It describes the evolution of products and markets through disruption, drawing from Sinofsky's own insights and also building on the work of Everett Rogers ("The Diffusion of Innovations") and Clayton Christensen ("The …

Anders Karlsson wrote about Some myths on Open Source, the way I see it a few days ago.  Anders' article is mostly focused on exploding the idea that open source magically creates high quality code.  It is sad to say you do not have to look very far to see how true this is.

While I largely agree with Anders' points, there is far more that could be said on this subject, especially on the benefits of open source. I love working on open source software. Here are three reasons that are especially important to me.

1.) Open source is a great way to disseminate technology to users.  In the best cases, it is this easy to get open source products up and running:

$ sudo apt-get install software-i-want-to-use

A lot of software companies ( …

December 5, 2013 By Severalnines

Thanks to everyone who attended yesterday’s webinar; if you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

Thanks again to our speaker, Seppo Jaakola from Codership, the creators of Galera Cluster, for this in-depth talk on Galera Cluster Best Practices - Zero Downtime Schema Changes.

Webinar topics covered

• How to perform Zero Downtime Schema Changes
• 2 main methods: TOI and RSU
• Total Order Isolation: predictability and consistency
• Rolling Schema Upgrades
• pt-online-schema-change
…

Kauli – Open Source Grown Up

Kuali is proof that the Open Source model works for more than nerds and geeks. Kuali is a movement where colleges and universities pool resources to develop the software they need to run their institutions. The parties involved provide money and bodies to work on the various projects. And if an school needs a feature in a hurry, they provide money or bodies to get the work done. This is a highly collaborative effort spans the globe.

Many of these same schools found themselves locked into very expensive software that had to be extensively tailored to meet their needs. Each upgrade was an expensive and time consuming process in an era of shrinking staffs and budgets. Regular upgrades were needed to support changes in regulations or latent needs. The cost of upgrades and customization was taking too much of scarce funds. This drove them into an open …

November 4, 2013 By Severalnines Percona Live London MySQL Conference - 11-12th November, 2013

We’re particularly excited about this year’s Percona Live London MySQL Conference. The line-up of speakers & topics looks excellent and it’s good to see speakers from Oracle, Percona, the MariaDB Foundation (amongst others) scheduled at the same event. It demonstrates not just the diversity of the ever broadening MySQL ecosystem, but also the fact that there really is room for everyone to contribute, participate in and advance MySQL in manifold directions while still retaining a certain amount of uniformity.

And this is how we will be contributing to the event ...

Talk - MySQL Cluster Performance Tuning By Johan Andersson, CTO & Co-Founder, Severalnines

Correct tuning of MySQL NDB Cluster can have dramatic impact on …

You love MySQL for its ease of deployment – but are you worried about how your application will perform when it starts to scale?

SPEAKER: Gerry Narvaja, Tokutek
DATE: Wednesday, November 6th
TIME: 1pm ET
Register Now!

Join this interactive webinar with Gerry Narvaja of Tokutek as he walks through the potential pitfalls when using MySQL for Big Data applications, how you can avoid unnecessary tolls on time and resources and tips on how to get the most out of your MySQL applications with open source TokuDB.

Attend this webinar to learn how to:

• dramatically increase performance without having to rewrite code
• reduce the total cost of your servers and flash/SSD storage
• perform hot schema changes

The …

“The most valuable thing I’ve learned in this role is that judicious use of a little bit of knowledge can go a long way. I’ve seen colleagues and other companies get caught up in the “Big Data” craze by spend hundreds of thousands of pounds sterling on a Hadoop cluster that sees a few megabytes [...]

Today, while at Oracle's MySQL Connect conference in San Francisco, I had the opportunity to talk to Gerardo Narvaja and that inspired me to try using OQGraphv3 and TokuDB. Of course, the first challenge is to compile it on my MacBook which has MacOS Lion 10.7. I installed the Apple's latest XCode Command Line tools and eventually compiled a MariaDB which had both TokuDB and OQGraph available

Just mentioning it here because hard work deserves to be recognised and mentioned: Andrew McDonnell is doing an awesomely good job of testing, understanding and fixing bugs in OQGraph... which is no mean feat because the core of the code is based on the Boost Graph Library which isn't a trivial C++ library.