修改Mariadb数据库文件存储路径
mysql也是类似的配置。MariaDB
默认的数据的存储目录为/var/lib/mysql
,准备改为/data/mysql
。
停止服务
systemctl stop mariadb
数据迁移
mv /var/lib/mysql /data/mysql
修改配置
vim /etc/my.cnf
# 在[client-server]中添加
socket=/data/mysql/mysql.sock
# 在[mysqld]中添加,末尾必须是/
datadir=/data/mysql/
完整配置
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
socket=/data/mysql/mysql.sock
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
[mysqld]
init_connect='SET collation_connection = utf8mb4_unicode_ci'
init_connect='SET NAMES utf8mb4'
character_set_server=utf8mb4
collation-server=utf8mb4_unicode_ci
skip-character-set-client-handshake=true
datadir=/data/mysql/
注:datadir上面的五行是设置默认字符集为utf8mb4,否则emoji表情是无法正确存储的。
验证
# 登录
mysql -uroot -p
# 查询
show global variables like "%datadir%";
# 结果
MariaDB [(none)]> show global variables like "%datadir%";
+---------------+--------------+
| Variable_name | Value |
+---------------+--------------+
| datadir | /data/mysql/ |
+---------------+--------------+
1 row in set (0.00 sec)
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