Twitter releases its MySQL scalability tweaks

Courtesy of Twitter, MySQL has more capabilities to scale to NoSQL levels

Twitter has released some of the tweaks it has made to MySQL, potentially bringing greater scalability to the open-source relational database management system.

As one of the largest users of MySQL, Twitter uses the database software to store most of the data its 140 million users generate.

"Due to our scale, we push MySQL a lot further than most companies," wrote Twitter engineers Jeremy Cole and Davi Arnau, in a blog post announcing the release of a number of changes to the software Twitter originally made for its own use.

This code addresses a crucial issue for MySQL: the ability to scale to meet the demands of large data-processing-intensive systems, such as Twitter's. Much of the appeal behind NoSQL-styled databases, such as Cassandra, has come from how they bypass the limits that relational databases systems such as MySQL have had in scaling across multiple servers.

Among the changes is some code that would allow MySQL to run more effectively on large pooled-memory systems. Specifically, it allocates during startup all the memory needed for the core InnoDB database engine. It also ensures adequate performance even when available server memory is at a minimum.

Twitter's efforts to massively scale MySQL join a number of other products that target that specific need, such as Percona's recently released XtraDB cluster, Oracle's MySQL Cluster and TokuTek's TokuDB.

In addition to the scalability enhancements, Twitter also added a number of other features as well to the free code. They include new internal status checks, which would allow users to monitor InnoDB performance more closely. The code also optimizes MySQL for use of SSDs (Solid-State Disks).

Twitter released the code on the eve of the Percona Live MySQL conference, being held this week in Santa Clara, California. There, Cole and Arnau will be giving a presentation on Gizzard, Twitter's sharding and replication framework for MySQL.

Twitter posted the patches on GitHub, under a BSD (Berkeley Software Distribution) license.

Joab Jackson covers enterprise software and general technology breaking news for The IDG News Service. Follow Joab on Twitter at @Joab_Jackson. Joab's e-mail address is Joab_Jackson@idg.com

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Joab Jackson

IDG News Service
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?