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218 blog posts in 13 categories

Become a MySQL DBA blog series - Configuration Tuning for Performance

In this blog post, we’ll discuss some of the settings that are most often tweaked and which can bring you significant improvement in the performance. We will also cover some of the variables which are frequently modified even though they should not. Performance tuning is not easy, but you can go a surprisingly long way with a few basic guidelines.

Architecting for Failure - Disaster Recovery of MySQL/MariaDB Galera Cluster

Whether you use unbreakable private datacenters or public cloud platforms, Disaster Recovery (DR) is indeed a key issue. This is not about copying your data to a backup site and being able to restore it, this is about business continuity and how fast you can recover services when disaster strikes.

Become a MySQL DBA blog series - Live Migration using MySQL Replication

This is the seventh installment in the ‘Become a MySQL DBA’ blog series. Our previous posts in the DBA series include Database Upgrades, Replication Topology Changes, Schema Changes, High Availability, Backup & Restore, Monitoring & Trending.

Webinar Replay & Slides: Become a MySQL DBA - Designing High Availability for MySQL

Thanks to everyone who joined us yesterday for this live session on designing HA for MySQL led by Krzysztof Książek, Senior Support Engineer at Severalnines. The replay and slides to the webinar are now available to watch and read online.

Become a MySQL DBA blog series - Database upgrades

In this blog post, we will cover one of the most basic tasks of the DBA - minor and major database upgrades. This is the sixth installment in the ‘Become a MySQL DBA’ blog series. Our previous posts in the DBA series include Replication Topology Changes, Schema Changes, High Availability, Backup & Restore, Monitoring & Trending.

How to Avoid SST when adding a new node to Galera Cluster for MySQL or MariaDB

SST can be painful in some occasions, as it can block the donor node (with SST methods like mysqldump or rsync) and burden it when backing up the data and feeding it to the joiner. For a dataset of a few hundred gigabytes or more, the syncing process can take hours to complete - even if you have a fast network. It might be advisable to avoid e.g. when running in WAN environments with slower connects and limited bandwidth, or if you just want a very fast way of introducing a new node in your cluster.

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Webinar Replay & Slides: Become a MySQL DBA - Deciding on a relevant backup solution

Thanks to everyone who joined us last week for this live session on backup strategies for MySQL and Galera clusters led by Krzysztof Książek, Senior Support Engineer at Severalnines. The replay and slides to the webinar are now available to watch and read online via the links below.

Watch the replay

Become a MySQL DBA blog series - Common operations - Replication Topology Changes

This is the fifth installment in the ‘Become a MySQL DBA’ blog series, and discusses one of the most common operations a DBA has to handle - replication topology changes and planned failover. Our previous posts in the DBA series include Schema Changes, High Availability, Backup & Restore, Monitoring & Trending.

Deploying Galera Cluster for MySQL using Vagrant

Vagrant is a system that allows you to easily create and move development environments from one machine to another. Simply define what type of VM you want in a file called Vagrantfile and then fire them up with a single command. It integrates well with virtual machine providers like VirtualBox, VMware and AWS. In this blog, we’ll show you how to expedite the deployment of your development environment using some Vagrant boxes we’ve put together.

Become a MySQL DBA blog series - Common operations - Schema Changes

This is the fourth installment in the 'Become a MySQL DBA' series, and discusses the different approaches to schema changes in MySQL. Our previous posts in the DBA series include High Availability, Backup & Restore and Monitoring & Trending.