Multi-Cloud Galera Cluster on AWS and Azure via Asynchronous Replication
In this blog post, we are going to set up two Galera-based Clusters running on Percona XtraDB Cluster 5.7, one for the production and one for the disaster recovery (DR). We will use ClusterControl to...
MariaDB Cluster Offline Installation for CentOS
Most of the installation steps available on the Internet cover the standard online installation, presuming the database hosts are having an active internet connection to the package repositories and satisfy all dependencies. However, installation steps...
Maximizing Database Query Efficiency for MySQL – Part One
Slow queries, inefficient queries, or long running queries are problems that regularly plague DBA's. They are always ubiquitous, yet are an inevitable part of life for anyone responsible for managing a database. Poor database design...
Clustered Database Node Failure and its Impact on High Availability
A node crash can happen at any time, it is unavoidable in any real world situation. Back then, when giant, standalone databases roamed the data world, each fall of such a titan created ripples of...
How to Configure a Cluster-to-Cluster Replication for Percona XtraDB Cluster or MariaDB Cluster
In a previous blog, we announced a new ClusterControl 1.7.4 feature called Cluster-to-Cluster Replication. It automates the entire process of setting up a DR cluster off your primary cluster, with replication in between. For more...
Announcing ClusterControl 1.7.4: Cluster-to-Cluster Replication – Ultimate Disaster Recovery
We’re excited to announce the 1.7.4 release of ClusterControl - the only database management system you’ll ever need to take control of your open source database infrastructure. In this release we launch a new function...
Building a Hot Standby on Amazon AWS Using MariaDB Cluster
Galera Cluster 4.0 was first released as part of the MariaDB 10.4 and there are a lot of significant improvements in this version release. The most impressive feature in this release is the Streaming Replication...
Deploying a Highly Available Nextcloud with MySQL Galera Cluster and GlusterFS
Nextcloud is an open source file sync and share application that offers free, secure, and easily accessible cloud file storage, as well as a number of tools that extend its feature set. It's very similar...
A Guide to MySQL Galera Cluster Streaming Replication: Part Two
In the first part of this blog we provided an overview of the new Streaming Replication feature in MySQL Galera Cluster. In this blog we will show you how to enable it and take a...
A Guide to MySQL Galera Cluster Streaming Replication: Part One
Streaming Replication is a new feature which was introduced with the 4.0 release of Galera Cluster. Galera uses replication synchronously across the entire cluster, but before this release write-sets greater than 2GB were not supported....
Using MySQL Galera Cluster Replication to Create a Geo-Distributed Cluster: Part Two
In the previous blog in the series we discussed the pros and cons of using Galera Cluster to create geo-distributed cluster. In this post we will design a Galera-based geo-distributed cluster and we will show...
Using MySQL Galera Cluster Replication to Create a Geo-Distributed Cluster: Part One
It is quite common to see databases distributed across multiple geographical locations. One scenario for doing this type of setup is for disaster recovery, where your standby data center is located in a separate location...