Install MariaDB，installmariadb

Install MariaDB，installmariadb

Install MariaDB

CentOS 7 comes with MariaDB instead of MySQL. MariaDB is an open source equivalent to MySQL. To install MariaDB execute the following commands:

sudo yum install mariadb-server mariadb mariadb-devel php-mysql

Make MariaDB autostarting at boot

To autostart MariaDB at boot, we set it up as a service the same way we did before with httpd.service. Execute the following three commands to start, check the status and enable MariaDB as a permanent service:

sudo systemctl start mariadb.service
sudo systemctl status mariadb.service
sudo systemctl enable mariadb.service

Set MariaDB root password

Open an SQL prompt into your MariaDB server by executing the following command:

mysql -u root

You should land on the MariaDB prompt. In the following commands, you have to replace myrootpassword with the password you want to use for your MariaDB root user!

MariaDB [ (none) ]> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('myrootpassword'); Query OK, 0 rows affected (0.00 sec) MariaDB [ (none) ]> \q Bye

Now try if you can login with the root user

mysql -u root -p
Enter password: myrootpassword Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 5
Server version: 5.5.41-MariaDB MariaDB Server
Copyright (c) 2000, 2014, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [ (none) ]> \q Bye

Set max_allowed_packets for MariaDB

Bugzilla needs a minimum size of 'max_allowed_packet' configured within MariaDB. So let us change the generic MariaDB configuration to set the 'max_allowed_packet' size to 4 MBytes.
Open '/etc/my.cnf' with your editor and add the following lines below the '[mysqld]' section:

# Bugzilla
# maximum allowed size of an attachment upload
#change this if you need more!
max_allowed_packet=4M

After that change the entire 'my.cnf' looks like this:

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd

# Bugzilla
# maximum allowed size of an attachment upload
#change this if you need more!
max_allowed_packet=4M

[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid

#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

The changes will take affect after restaring MariaDB.

sudo systemctl restart mariadb.service