MariaDB 修改存储路径后启动失败问题解决

修改 MariaDB 路径到 home 路径下，

执行 systemctl start mariadb 启动MariaDB 时，报错提示：

Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details.

systemctl status mariadb.service 查看报错详情

[Warning] Can't create test file /home/data/mariadbData/localhost.lower-test
mariadb.service: main process exited, code=exited, status=1/FAILURE
Failed to start MariaDB 10.3.9 database server.

问题的原因是因为 mariadb 没有 home 路径的权限

解决方法：

1. 关闭 selinux

2. 修改 存储路径权限，

chown -R mysql:mysql /home/mysql_data
chmod -R 764 /home/mysql_data

　3. 如果你的存储路径是home 下面的路径，那么接下来是重点:

vim /etc/systemd/system/mariadb.service.d/homedir.conf

　　输入以下内容

[Service]
ProtectHome=false

　　然后执行

systemctl daemon-reload

　　重启mariadb

systemctl start mariadb