Having too large a (write) workload on a master is dangerous. If the master collapses and a failover happens to one of its slave nodes, the slave node could collapse under the write pressure as...

  In the previous blog post, we discussed how gh-ost works internally and how it compares to Percona’s pt-online-schema-change. Today we’d like to focus on operations - how can we test a schema change with...

  All backup methods have their pros and cons. They also affect database workloads differently. Your backup strategy will depend upon the business requirements, the environment you operate in and resources at your disposal. Backups...

  Database schema change is one of the most common activities that a MySQL DBA has to tackle. No matter if you use MySQL Replication or Galera Cluster, direct DDL’s are troublesome and, sometimes, not...

MySQL offers multiple storage engines to store its data, with InnoDB and MyISAM being the most popular ones.  Each storage engine implements a more specific set of features required for a type of workload, and...

  This week we’re happy to announce that our new DevOps Guide to Database Backups for MySQL & MariaDB is now available for download (free)! This guide discusses in detail the two most popular backup...

In the previous blog post, we have looked into the multi-host networking capabilities with Docker with native network and Calico. In this blog post, our journey to make Galera Cluster run smoothly on Docker containers...

Eurofunk replaces Oracle with feature-rich Severalnines ClusterControl Today we’re happy to announce Eurofunk, one of the largest European command centre system specialists, as our latest customer. Severalnines was brought on board to help manage the...

The cloud is no longer a question of if, but of when. Many IT leaders, however, find that one consistent barrier to their adoption of the cloud is vendor lock-in. What do you do when...

NinesControl is a new service from Severalnines which helps you deploy MySQL, Galera, and MongoDB clusters in the cloud. In this blog post we will show you how you can easily deploy and monitor your...

ClusterControl helps vidaXL compete with the world's largest e-commerce platforms by managing its MongoDB & MySQL databases. Press Release: everywhere around the world, November 9th 2016 - today we announced vidaXL, an international eCommerce platform where...

Thanks to everyone who participated in this week’s webinar on working with optimizer and SQL tuning. In this session, Krzysztof Książek, Senior Support Engineer at Severalnines, discussed how execution plans are calculated. He also took...