参考地址:
https://mirror.mariadb.org/yum/10.4/centos7-amd64/rpms/
http://www.gxcode.top/code
4.1 安装mariadb环境需要的依赖
# yum install rsync nmap lsof perl-DBI nc
4.2 安装MariaDB依赖包
# rpm -ivh jemalloc-3.6.0-1.el7.x86_64.rpm
# rpm -ivh jemalloc-devel-3.6.0-1.el7.x86_64.rpm
4.3 查询旧的mariadb并删除
# rpm -qa | grep mariadb-libs
# rmp -ev