SQL_CentOS 7下安装MariaDB，sql_centosmariadb

SQL_CentOS 7下安装MariaDB，sql_centosmariadb

进入root模式

$ su

①安装
安装MariaDB服务

# yum install -y mariadb-server

安装MariaDB命令行客户端

# yum install -y mariadb

安装 MariaDB C library

# yum install -y mariadb-libs

安装 mariadb 开发包

# yum install -y mariadb-devel

②更改配置

# vim /etc/my.cnf.d/client.cnf 
[client] 下加上如下内容 
default-character-set=utf8

# vim /etc/my.cnf.d/mysql-clients.cnf 
[mysql] 下加上如下内容 
default-character-set=utf8

# vim /etc/my.cnf.d/server.cnf
[mysqld] 下加上如下内容
collation-server = utf8_general_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
sql-mode = TRADITIONAL

③启动
启动服务

# systemctl start mariadb

设置服务开机自动启动

# systemctl enable mariadb

查看服务状态

# systemctl status mariadb

输出如下，注意到 Active 状态为 active (running)

● mariadb.service - MariaDB database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
   Active: active (running) since 一 2018-12-10 10:56:33 CST; 6 days ago
 Main PID: 32328 (mysqld_safe)
   CGroup: /system.slice/mariadb.service
           ├─32328 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
           └─32564 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-d...

12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: MySQL manual for more instructions.
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: Please report any problems at ht...a
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: The latest information about Mar....
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: You can find additional informat...:
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: http://dev.mysql.com
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: Consider joining MariaDB's stron...:
12月 10 10:56:31 aliyun mariadb-prepare-db-dir[32250]: https://mariadb.org/get-involved/
12月 10 10:56:31 aliyun mysqld_safe[32328]: 181210 10:56:31 mysqld_safe Logging to '/v...'.
12月 10 10:56:31 aliyun mysqld_safe[32328]: 181210 10:56:31 mysqld_safe Starting mysql...ql
12月 10 10:56:33 aliyun systemd[1]: Started MariaDB database server.
Hint: Some lines were ellipsized, use -l to show in full.

④测试连接
使用命令行客户端尝试连接

# mysql -u root

输出如下

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 100
Server version: 5.5.60-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)]> 

查看MariaDB版本号

MariaDB [(none)]> select version();

输出如下

+----------------+
| version()      |
+----------------+
| 5.5.60-MariaDB |
+----------------+
1 row in set (0.00 sec)

查看字符集配置

MariaDB [(none)]> show variables like '%char%';

输出如下

+--------------------------+----------------------------+
| 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)

⑤设置密码
退出MariaDB

MariaDB [(none)]> exit

设置密码

# mysql_secure_installation

有Y/N时, 一律选择Y

出现下述内容时, 设置密码
New password:
出现下述内容时, 再次输入刚才输入的密码
Re-enter new password:

⑥使用命令行客户端再次连接(带密码)

# mysql -u root -p

随后输入刚设置的密码
输入如下

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 101
Server version: 5.5.60-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)]> 

完成!