Troubleshooting Galera Cluster Issues: Part 2
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...
Troubleshooting Galera Cluster Issues: Part 1
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...
Using NGINX as a Database Load Balancer for Galera Cluster
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...
Understanding the MySQL Galera Cluster and MariaDB Cluster Diagnostic Logs
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...
Webinar Replay: Deploying MongoDB, MySQL, PostgreSQL & MariaDB’s MaxScale in 40min
Live demo recording of ClusterControl 1.2.11 and its new features Thanks to everyone who joined us for our recent live webinar on ‘ClusterControl 1.2.11 - new release’ led by Art van Scheppingen , Senior Support...
High Availability MySQL on cPanel with Galera Cluster
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...
High Availability Galera Clusters for Indonesia’s leading eCommerce Payment Gateway
Indonesia, the fourth most populous country in the world, is emerging as an economic powerhouse in Asia Pacific. With 60% of a population of 250 million being under 30 years of age, growing internet penetration...
How to Perform an Online Upgrade of Galera Cluster to MySQL 5.6
Oracle released a GA version of MySQL 5.6 in February 2013, Codership released the first GA in their patched 5.6 series in November 2013. Galera Cluster for MySQL 5.6 has been around for almost 2...
Architecting for Failure – Disaster Recovery of MySQL Galera Cluster
Failure is a fact of life, and cannot be avoided. No IT vendor in their right mind will claim 100% system availability, although some might claim several nines :-) We might have armies of ops...
How to Avoid SST When Adding a New Node to MySQL Galera Cluster
State Snapshot Transfer (SST) is a way for Galera to transfer a full data copy from an existing node (donor) to a new node (joiner). If you come from a MySQL replication background, it is...
Deploying MySQL Galera Cluster Using Vagrant
Please note: The content of this blog is outdated. Please refer to our other blogs or resources on related topics. Or contact us via our online chat if you have any questions. Setting up environments, starting...
Severalnines Creates Programmable DevOps Platform to Manage Leading Open Source Databases
New ClusterControl release includes customisation language for management and automation Stockholm, Sweden and anywhere else in the world - 27 MAY 2015 - Severalnines, the provider of database infrastructure management software, today launched the latest...