SHOW VARIABLES LIKE "general_log%";

+------------------+----------------------------+
| Variable_name    | Value                      |
+------------------+----------------------------+
| general_log      | OFF                        |
| general_log_file | /var/run/mysqld/mysqld.log |
+------------------+----------------------------+

SET GLOBAL general_log = 'ON';

kapatmak için

mysql> SET GLOBAL general_log = 'OFF';