Galera at Fosdem, Percona Live MySQL Conference & Expo
Last week I wrote about our participation in the SkySQL and MariaDB roadshow. First event in Stuttgart completed on Friday, and the tour continues into Hamburg this Friday and Stockholm on February...
View ArticleGalera joins the SkySQL and MariaDB Road Show
SkySQL is a well known support provider in the MySQL ecosystem and since 2012 they are also an official Galera partner. SkySQL customers can get Galera Cluster for MySQL support as part of their SkySQL...
View ArticleBots, beware!
Our site gets dozens of bot registrations on a daily basis. I believe every site with membership does. It is so pointless (and yet so easy to achieve, so "we do it because we can"), that its...
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Who is using Galera Cluster?
A common question, especially for a new technology like Galera, is always that people want to know who else is already using the technology. In terms of sales this is often called reference customers....
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Using Galera Cluster for MySQL together with a SAN
A week or two ago I heard second hand about someone saying "they can't use Galera because they use SAN for everything". Well, just so there is no doubt: You can perfectly well use Galera together with...
View Article5 Tips for migrating your MySQL server to a Galera Cluster
The momentum behind Galera is strong, as you can see on mailing lists1 or the standing room only lectures at Percona Live UK. If you follow the buzz you can also see that the discussion is increasingly...
View ArticleHow Hard Could That Be? Take II.
When we started to develop Galera replication about 5 years ago, we faced a question of how to test it under load: we needed a fast, flexible and easy to use load balancer. Thus GLB project was born,...
View ArticleGalera Cluster for MySQL 5.5.28-23.7 released
Last week Codership released a new version of Galera Cluster for MySQL: 5.5.28-23.7 (click to download)This is a bug fix maintenance release. There are several significant fixes and users are...
View ArticleOur first whitepaper: Minimizing downtime and maximizing elasticity with...
We have released our first whitepaper about Galera Cluster for MySQL, called Minimizing downtime and maximizing elasticity with Galera Cluster for MySQL. This is a so called "business" white paper. It...
View ArticleSomething to blog about
So, GitHub had a few hours of downtime recently. And naturally it owes some lessons to be had. For example, Baron suggests that automated failover is evil. (Coincidentally, I wrote an unpublished rant...
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What's The Difference, Kenneth?
Uh, this is this time of the year again. You know, MySQL User Conference and Stuff. And again we need to bring some news about Galera.What's new about Galera? Everybody knows that it kicks ass, so...
View ArticleWating For The Miracle
A short discussion with Baron at Henrik's blog has stirred my eloquence.Baron points to a great post by Josh Berkus where Josh contemplates the database clustering issues from a novel viewpoint. The...
View ArticleJust watch me now
So, when I posted new benchmarks about intercontinental synchronous replication performance, I kinda was not sure if that 6000 km disaster recovery scenario was not blown out of proportions. Honestly I...
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Synchronous Replication Loves You Again
So, the other day I posted the performance benchmarks for the multi-master MariaDB/Galera cluster. Spectacular performance. But some of you may justifiably say:— Well, we were born into a master/slave...
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Scaling-out OLTP load on Amazon EC2 revisited.
It's been long known that Galera optimistic replication and enterprise-size databases are a match made in heaven. Today we're going to get a little closer to testing this statement. We'll have look at...
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Multi-Master Arithmetics
The time has come. People keep on asking why there is a practical limit on the number of nodes in multi-master cluster and what is it exactly. So here's some no-nonsense hardcore multi-master...
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Synchronous Replication Loves You
Dedicated to Fernando Pedone and other modest and courageous researchers whose work made this possible.Sysbench Synchrones TransatlantiquesIf the curious reader decides to google for "synchronous...
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SysBench on EC2: Size Matters
It been sometime since we benchmarked MySQL/Galera with sysbench, using it mostly for testing. Our recent visit to Percona Performance Conference showed that sysbench is probably most widely used tool...
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Scaling Drupal stack with Galera: part 2, The Mystery of a Failed Login
This is the second part in in the series of posts about scaling Drupal stack. The first part can be found here.GLB has been fixed to support unlimited connections and now I can benchmark Drupal stack...
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