MySQL5.7 导入数据提示--secure-file-priv选项报错解决
https://blog.51cto.com/hld1992/2368512
https://www.cnblogs.com/Braveliu/p/10728162.html
MySQL UMASK或UMASK_DIR环境变量
https://www.docs4dev.com/docs/zh/mysql/5.7/reference/file-permissions.html
How to solve InnoDB: Unable to lock ./ibdata1 mysql error?
https://stackoverflow.com/questions/35978228/how-to-solve-innodb-unable-to-lock-ibdata1-mysql-error