It's important to understand which Galera version you are running, for proper compatibility of MariaDB with the Galera replication library, and also to check which featureset you have access to. However, Galera version numbering can be difficult to decipher because of its complex scheme.
Version numbering in Galera consists of three different components:
Over the summer, SkySQL has taken big strides in our collaboration with strategic partners. Our relationship with IBM has deepened and broadened as the porting and optimization of MariaDB on Power8 servers has progressed. The performance results look very promising and this collaboration is already opening some very exciting discussions with lead customers.
Auditing is an essential task for monitoring your database environment. Auditing information can help you troubleshoot performance or application issues, and lets you see exactly what SQL queries are being processed. MariaDB's Audit Plugin provides auditing functionality for not only MariaDB, but MySQL as well.
When you need a fast and reliable hosting solution, you should consider which web server and database system to use. Many sites find the combination of nginx (pronounced "engine x") and MariaDB to be an optimal solution. Let's see how to install and configure the applications to work together.
MaxScale, an open-source database-centric router for MySQL and MariaDB makes High Availability possible by hiding the complexity of backends and masking failures. MaxScale itself however is a single application running in a Linux box between the client application and the databases - so how do we make MaxScale High Available? This blog post shows how to quickly setup a Pacemaker/Corosync environment and configure MaxScale as a managed cluster resource. We will guide you step by step on how to enable basic High Availability by setting up three Linux Centos 6.5 servers with MaxScale.
With MariaDB, as with any service, you must monitor user resource usage to ensure optimal performance. MariaDB provides detailed statistics for resource usage on per-user basis that you can use for database service monitoring and optimization. User statistics are especially useful in shared environments to prevent a single gluttonous user from causing server-wide performance deterioration. If you detect abnormal use, you can apply fine-grained limits, as we'll see.
MaxScale for MariaDB and MySQL hides the complexity of database scaling from the application. To streamline building MaxScale from source and running the test suite, you can automate the process with some useful tools to meet your needs. I have created a Vagrant / Puppet setup I'd like to share with you.
Replication has been one of the most popular MySQL features since it made its way into the application more than a decade ago. Global Transaction IDs was introduced to make handling complex solutions easier. This blog explains how MariaDB makes handling GTID simpler