MariaDB.yum install

# MariaDB 10.2 CentOS repository list - created 2018-02-02 16:03 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.2/centos7-ppc64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

yum install MariaDB-server MariaDB-client

#启动mariadb服务
systemctl start mariadb
#开启mariadb服务自启
systemctl enable mariadb

mysql_secure_installation