How To Install MariaDB 5.5 on CentOS 6

Reading Time: 2 minutesMariaDB is a drop-in replacement for MySQL. It is easy to install, offers many speed and performance improvements, easy to integrate into most MySQL deployments. Answers for compatibility questions can be found at: MariaDB versus MySQL – Compatibility. MariaDB offers more storage than MySQL, including Cassandra (NoSQL), XtraDB (drop-in replacement for InnoDB), and OQGRAPH.
Pre-Flight Check
  • These instructions are intended for installing MariaDB on a single CentOS 6 node.
  • I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.
Step #1: Add the MariaDB Repository
First, you’ll follow a simple best practice: ensuring the list of available packages is up to date before installing anything new: yum -y update Now find which repo you should use with the MariaDB repository generator. We’re going to add the CentOS 6 (64 bit) MariaDB 5.5 repository. For a refresher on editing files with vim see: New User Tutorial: Overview of the Vim Text Editor vim /etc/yum.repos.d/MariaDB55.repo # MariaDB 5.5 CentOS repository list – created 2014-10-03 15:57 UTC # http://mariadb.org/mariadb/repositories/ [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/5.5/centos6-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1 Then exit and save the file with the command :wq .
Step #2: Remove the Existing MySQL Installation
In some cases a manual uninstall of mysql is necessary. Be sure to backup MySQL before proceeding with the following instructions!
Stop MySQL: service mysqld stop Remove the existing MySQL packages: yum -y remove mysql-server mysql
Step #3: Install MariaDB
At this point, installing MariaDB is as simple as running just one command: yum -y install mysql-server mysql And then start MySQL, now MariaDB, again: service mysql start Run mysql_upgrade: mysql_upgrade Verify MySQL is now MariaDB by using the command client: mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 2 Server version: 5.5.39-MariaDB MariaDB Server Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others. Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement. Now, if you want to upgrade to MariaDB 10.0, then check-out our Knowledge Base tutorial: How to Upgrade MySQL 5.1 to MariaDB 10.0 on CentOS 6
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