Severalnines Blog
The automation and management blog for open source databases

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340 blog posts in 13 categories

ClusterControl 1.5 - Announcing MariaDB 10.2 Support

This blog provides an overview of MariaDB and it’s new version 10.2 which is now supported in ClusterControl 1.5.

ClusterControl 1.5 - Automatic Backup Verification, Build Slave from Backup and Cloud Integration

Let's take a look on massive improvements that the new ClusterControl 1.5 brings in MySQL backup aspect.

Several Ways to Intentionally Fail or Crash your MySQL Instances for Testing

This blog post features some ideas (with examples) on how to crash a MySQL server in a Linux environment.

The Galera Cluster & Severalnines Teams Present: How to Manage Galera Cluster with ClusterControl - The Replay

Introducing the replay of our joint webinar with the Galera Cluster Team in which we hear from Seppo Jaakola, CEO at Codership - the creators of Galera Cluster - on what the latest is on the most popular HA technology for MariaDB & MySQL and demonstrate how to manage it with ClusterControl.

MySQL & MariaDB Database Backup Resources

This blog provides a list of all our best resources created to help users build and executive an effective and efficient MySQL and MariaDB database backup strategy & plan.

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HAProxy: All the Severalnines Resources

This blog aggregates all the great resources we have created to help you understand, deploy, and maximize the potential of HAProxy load balancing technology.

HAProxy Connections vs MySQL Connections - What You Should Know

Max connections determines the maximum number of connections to the database server. This can be set on both the database server, or the proxy in front of it. In this blog post, we’ll dive into HAProxy and MySQL maximum connections variables, and see how to get the best of both worlds.

How to Stop or Throttle SST Operation on a Galera Cluster

A full node resync, or SST, can be a heavy, long-running operation that impacts the performance and stability of a Galera Cluster. This blog post explains a trick on how to stop an ongoing SST operation in a clean manner.

How to Automate Galera Cluster Using the ClusterControl CLI

As sysadmins and developers, we spend a lot our time in a terminal. So we brought ClusterControl to the terminal with our command line interface tool called s9s. This blog post shows how to use s9s to automate management of a Galera Cluster and a master-slave replication setup.

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[Updated] Monitoring Galera Cluster for MySQL or MariaDB - Understanding metrics and their meaning

Read this blog to find out how ClusterControl combines the two most popular types of monitoring, and see how it presents needed information on Galera Cluster and how we should interpret it.