CentOS安装mariadb

1、 安装

[root@localhost ~]#  yum install mariadb mariadb-server
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2、 启动并自启

[root@ecs-3f21 ~]# systemctl enable mariadb --now
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3、 查看启动状态

[root@ecs-3f21 ~]# systemctl status mariadb
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4、 初始化mariadb并设置root密码

[root@ecs-3f21 ~]# mysql_secure_installation
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NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 			#直接敲回车进入下一步
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y				# 是否设置密码。输入y	
New password: 			#输入密码
Re-enter new password: 			#确认密码	
Password updated successfully!		
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y			#是否移除匿名用户，选y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y				# 是否禁用root用户远程访问，
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y		#是否移除测试数据库选y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y		#刷新权限表
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!
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5、 配置文件及日志所在

配置文件：	/etc/my.cnf
日志文件：	/var/log/mariadb/mariadb.log
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mariadb 完全兼容mysql，命令一样！