MySQL - Centos7安装配置MariaDB10.3

生成配置

在 MariaDB Repository Configuration Tool 选择系统版本以及需要安装的mariadb版本。将生成的内容将生成的内容保存至/etc/yum.repos.d/mariadb.repo。

例如我选择的是系统版本是centos7 (x86_64)，要安装的是10.3[old stable]版本。

# MariaDB 10.3 CentOS repository list - created 2021-01-21 06:32 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.3/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

更换源

执行以下命令替换源地址

sudo sed -i 's#yum\.mariadb\.org#mirrors.ustc.edu.cn/mariadb/yum#' /etc/yum.repos.d/mariadb.repo
# 建议使用 HTTPS
sudo sed -i 's#http://mirrors\.ustc\.edu\.cn#https://mirrors.ustc.edu.cn#g' /etc/yum.repos.d/mariadb.repo

安装

sudo yum install MariaDB-server MariaDB-client

配置

1. 启动服务并设为开机自启

systemctl start mariadb
systemctl enable mariadb

1. 设置密码

执行mysql_secure_installation命令进行root密码的设置

mysql_secure_installation #设置root密码等相关

Enter current password for root (enter for none):  # 输入数据库超级管理员root的密码(注意不是系统root的密码)，第一次进入还没有设置密码则直接回车

Set root password? [Y/n]  # 设置密码，y

New password:  # 新密码
Re-enter new password:  # 再次输入密码

Remove anonymous users? [Y/n]  # 移除匿名用户， y

Disallow root login remotely? [Y/n]  # 拒绝root远程登录，n，不管y/n，都会拒绝root远程登录

Remove test database and access to it? [Y/n]  # 删除test数据库，y：删除。n：不删除，数据库中会有一个test数据库，一般不需要

Reload privilege tables now? [Y/n]  # 重新加载权限表，y。或者重启服务也许

1. 设置字符集

在/etc/my.cnf文件[mysqld]标签下添加

init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake

在/etc/my.cnf.d/client.cnf文件[client]标签下添加

default-character-set=utf8

在/etc/my.cnf.d/mysql-clients.cnf文件[mysql]标签下添加

default-character-set=utf8

1. 重启服务

systemctl restart mariadb

验证

1. 查看mariadb版本

[root@localhost ~]# mysql -uroot -p

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 12
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> 

安装版本为10.3.27🆗

1. 查看字符集相关配置

MariaDB [(none)]> show variables like "%character%";show variables like "%collation%";
+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)

+----------------------+-----------------+
| Variable_name        | Value           |
+----------------------+-----------------+
| collation_connection | utf8_unicode_ci |
| collation_database   | utf8_unicode_ci |
| collation_server     | utf8_unicode_ci |

参考

centos7 安装Mariadb

MariaDB 源使用帮助