Moodle is an open source learning management system, widely used by schools and universities around the world. The project started in 2002 by Martin Dougiamas, with the aim to provide learners, teachers, educators a secure,...

Moodle is an open-source e-learning platform (aka Learning Management System) that is widely adopted by educational institutions to create and administer online courses. For larger student bodies and higher volumes of instruction, moodle must be...

InnoDB is one of the most widely used storage engines in MySQL. This storage engine is known as a high-reliability and a high-performance storage engine and its key advantages include supporting row-level locking, foreign keys...

As the most popular open source database, MySQL has been implemented in many places, from small startups to very large organizations. Use cases vary from simple website applications to mission critical environments with 99.999% uptime...

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...

In this blog post, we are going to look into how to perform online migration from MySQL 5.6 standalone setup to a new replication set running on MySQL 5.7, deployed and managed by ClusterControl.  The...

In recent years, the use of platform infrastructure has shifted from on-premise to cloud computing. This is based on the absence of cost capital costs that must be incurred by the company if used when...

Replication lag is an inevitable occurrence for multi-cloud database deployments, as it causes delays of transactions to reflect into the target node or cluster. When implementing a multi-cloud database deployment, the most common scenario (and...

These days databases spanning across multiple clouds are quite common. They promise high availability and possibility to easily implement disaster recovery procedures. They are also a method to avoid vendor lock-in: if you design your...

Many would agree that having a graphical user interface is more efficient and less prone to human error when managing or administering a system. Graphical user interface (GUI) greatly helps reduce the steep learning curve...

ProxySQL is a very popular proxy in MySQL environments. It comes with a nice set of features including read/write splitting, query caching and query rewriting. ProxySQL stores its configuration in SQLite database, configuration changes can...

When your database workload is over stressed, you first want to look at what queries are running in an attempt to see the pattern of the query. Is it write heavy? Read heavy? Where is...