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354 blog posts in 13 categories

9 Tips for Going in Production with Galera Cluster for MySQL

Are you going in production with Galera Cluster for MySQL? Here are 9 tips to consider before going live. These are applicable to all 3 Galera versions (Codership, Percona XtraDB Cluster and MariaDB Galera Cluster).

Clustering Moodle on Multiple Servers for High Availability and Scalability

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 robust enough to serve thousands of learners, administrators, content builders and instructors simultaneously. Availability and scalability are key requirements as moodle becomes a critical application for course providers. In this blog, we will show you how to deploy and cluster moodle/web, database and file-system components on multiple servers to achieve both high availability and scalability. 

How-to and Performance Impact of SSL-Encrypted Replication Traffic in Galera Cluster for MySQL

Deploying Galera Clusters across WAN environments might lead to concerns around data privacy and security - especially as more organisations are having to comply with national and international regulations. You would not want hackers eavesdropping or intercepting replication traffic. Encrypted replication hides what is sent between the Galera nodes, and makes sure each node is only communicating to the ones it trusts. But how expensive is encryption?

Archival and Analytics - Importing MySQL data into Hadoop Cluster using Sqoop

We won’t bore you with buzzwords like volume, velocity and variety. This post is for MySQL users who want to get their hands dirty with Hadoop, so roll up your sleeves and prepare for work. Why would you ever want to move MySQL data into Hadoop? One good reason is archival and analytics. You might not want to delete old data, but rather move it into Hadoop and make it available for further analysis at a later stage.

Clustering SugarCRM with MySQL Galera for High Availability and Performance

SugarCRM is the leader in open source CRM systems, and has been adopted by some of the largest firms, including IBM. The CRM software includes all sales, marketing and support tools out of the box, and can also be extended to integrate social media sources. For those depending on SugarCRM, especially when deploying in cloud environments with lower SLAs, having a high availability architecture can make a lot of sense. 

Webinar Replay & Slides: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster

Thanks to everyone who attended this week’s webinar; if you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

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How to Deploy Galera Cluster for MySQL using Docker Containers

Virtual Machines are great, and very useful when trying out new software. However, they might be an unnecessarily heavyweight solution when testing clusters, especially if these consist of multiple nodes running exactly the same software. Each VM runs a full-blown OS image. On the other hand, Linux Containers (LXC) are an efficient alternative to OS-level virtualization and can run multiple isolated systems on a single host. Docker is a wrapper around LXC, it automates the deployment of applications inside containers. 

How to Cluster Liferay with MySQL Galera and Ceph for High Availability and Performance

Liferay is an open-source content management system written in Java. It is used by a number of high traffic sites, as this survey suggests. 

Webinar Replay & Slides: Repair & Recovery for Your MySQL, MariaDB & MongoDB / TokuMX Clusters

Thanks to everyone who attended this week’s webinar; if you missed the sessions or would like to watch the webinar again and browse through the slides, they are now available online.

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Active-active Alfresco cluster with MySQL Galera and GlusterFS

Alfresco is a popular collaboration tool available on the open-source market. It is Java based, and has a content repository, web application framework and web content management system. For critical large-scale implementations that require 24*7 uptime, a multi-node cluster would be appropriate. Since Alfresco depends on external components such as the database and the filesystem, clustering the Alfresco instances only would not be enough.