How To Upgrade MariaDB on Centos 7

In this guide, we want to teach you How To Upgrade MariaDB on Centos 7.

MariaDB is a fork of MySQL. In other words, it is an enhanced, drop-in replacement of MySQL.

A drop-in replacement means you can substitute the standard MySQL server with the analog version of the MariaDB server and take full advantage of the MariaDB improvements without needing to modify your application code.

MariaDB is fast, scalable, and robust. It supports more storage engines than MySQL. MariaDB also includes many plugins and tools that make it versatile for lots of use cases.

How To Upgrade MariaDB on Centos 7

To upgrade your MariaDB service, you need some requirements.

Requirements

First, you must log in to your server as a non-root user with sudo privileges. To do this, you can follow our guide the Initial Server Setup with Centos 7.

Then, you must have a version of MariaDB running that is not the latest version.

Now follow the steps below to complete this guide.

Upgrading MariaDB on Centos 7

First, you must check the current MariaDB version and Centos version using the below commands:

# mysql -V

Output
mysql Ver 15.1 Distrib 5.5.68-MariaDB, for Linux (x86_64) using readline 5.1

cat /etc/centos-release

Output
CentOS Linux release 7.9.2009 (Core)

Then, you must create a backup or a dump of the existing databases. To do this, run the following command:

mysqldump -u root -p --all-databases > /tmp/database-backup.sql

cp -a /var/lib/mysql /var/lib/mysql.backup

cp -a /etc/my.cnf /etc/my.cnf_bk

systemctl stop mariadb

systemctl status mariadb

Output
● mariadb.service - MariaDB database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
Active: inactive (dead) since Wed 2022-06-22 05:41:22 EDT; 8s ago
Process: 14541 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited, status=0/SUCCESS)
Process: 14540 ExecStart=/usr/bin/mysqld_safe --basedir=/usr (code=exited, status=0/SUCCESS)
Process: 14506 ExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n (code=exited, status=0/SUCCESS)
Main PID: 14540 (code=exited, status=0/SUCCESS)

Move the current MariaDB repository with the following command:

mv /etc/yum.repos.d/mariadb.repo /etc/yum.repos.d/mariadb_bk

yum update

vi /etc/yum.repos.d/MariaDB.repo

[mariadb]
name = MariaDB
baseurl = https://mariadb.mirror.wearetriple.com/yum/10.8/centos7-amd64
gpgkey=https://mariadb.mirror.wearetriple.com/yum/RPM-GPG-KEY-MariaDB
gpgcheck=1

When you are done, save and close the file.

Now, you need to remove the MariaDB old version by using the command below on Centos 7:

yum remove mariadb-server

yum clean all

yum install MariaDB-server

yum install MariaDB-server galera-4 MariaDB-client MariaDB-shared MariaDB-backup MariaDB-common

systemctl start mariadb

systemctl enable mariadb

mysql_upgrade -u root -p

mysql -V

Output
mysql Ver 15.1 Distrib 10.8.3-MariaDB, for Linux (x86_64) using readline 5.1

At this point, you learn to Upgrade MariaDB on Centos 7 step by step.

Hope you enjoy it.