MySQL 报错'Variable 'XXX' is a read only variable'

设置参数时报错 mysql> set global secure_file_priv='/database/percona'; ERROR 1238 (HY000): Variable 'secure_file_priv' is a read only variable 报错缘由： 参数为只读参数，须要在配置文件中更改该参数，以后重启数据库 [mysql@localhost percona]$ b

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