Many thanks to everyone who participated in this week’s webinar on ‘9 DevOps Tips for going in production with MySQL / MariaDB Galera Cluster’. The replay and slides are now available to watch and read...

If you have deployed databases with high availability before, you will know that a deployment does not always go your way, even though you’ve done it a zillion times. You could spend a full day...

Edited on Sep 12, 2016 to correct the description of how ProxySQL handles session variables. Many thanks to Francisco Miguel for pointing this out. ProxySQL is becoming more and more popular as SQL-aware load balancer...

In our previous blog post we covered the deployment of four types of clustering/replication: MySQL Galera, MySQL master-slave replication, PostgreSQL replication set and MongoDB replication set. This should enable you to create new clusters with...

Award-winning database management platform scores deal with continent’s largest online video solutions provider Stockholm, Sweden and anywhere else in the world - 28/06/2016 - Severalnines, Europe’s leading database performance management provider, today announced its latest...

Thanks to everyone who joined us for our recent live webinar on performing live database upgrades for MySQL Replication & Galera, led by Krzysztof Książek. The replay and slides to the webinar are now available...

This is part 2 of our blog on how to troubleshoot Galera cluster - SST errors, and problems with network streaming. In part 1 of the blog, we covered issues ranging from node crashes to...

In this blog post, we are going to show you some examples of things that can go wrong in Galera - inexplicable node crashes, network splits, clusters that won’t restart and inconsistent data. We’ll take...

Nginx is well-known for its ability to act as a reverse-proxy with small memory footprint. It usually sits in the front-end web tier to redirect connections to available backend services, provided these passed some health...

In a previous post, we discussed the error log as a source of diagnostic information for MySQL. We’ve shown examples of problems where the error log can help you diagnose issues with MySQL. This post...

cPanel is a very popular Linux hosting control panel, used not only by hosting providers but also enterprise and goverment bodies. For large scale hosting environments hosting mission critical databases, how do you integrate cPanel...

Thanks to everyone who joined us for our recent live webinar on ‘Schema Changes for MySQL Replication & Galera Cluster’ led by Krzysztof Książek, Senior Support Engineer at Severalnines. The replay and slides to the...