設置mysql的general log

方法一:

生成general的表

 Setting MySQL General Log

 

This topic describes setting MySQL general log table.

Add parameters to my.cnf file (For Windows, my.ini). 
Go to %MYSQL_HOME directory. 
Open my.cnf (for UNIX) or my.ini (for Windows) with your text editor. 
Add the following parameters in [mysqld] section.

general_log=1

log_output=TABLE

Restart MySQL databases. 
Change the definition of "mysql.general_log" table. 
Switch the engine from CSV to MyISAM. To switch the engine from CSV to MyISAM, execute the following commands (the default is ENGINE=CSV).

mysql> SET GLOBAL general_log = 'OFF';

mysql> ALTER TABLE mysql.general_log ENGINE = MyISAM;

mysql> SET GLOBAL general_log = 'ON';

Check the definition of "mysql.general_log" table. Execute the following SQL command:

mysql> show create table mysql.general_log\G;

 

-----------------------------------------+

| Table       | Create Table

-----------------------------------------+

| general_log | CREATE TABLE `general_log` (

  `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TI

MESTAMP,

  `user_host` mediumtext NOT NULL,

  `thread_id` int(11) NOT NULL,

  `server_id` int(11) NOT NULL,

  `command_type` varchar(64) NOT NULL,

  `argument` mediumtext NOT NULL

) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='General log' |

+-------------+--------------------------------------------

 

Check if logging started. Execute the following command:

 

mysql> select * from mysql.general_log;

 

第二種方法：

mysql>set global general_log_file='/tmp/general.log';

mysql>set global general_log=on;

mysql>set global general_log=off;

查看tmp/general.log的信息，能夠大體看到哪些sql查詢/更新/刪除/插入比較頻繁了

 

第三種方法：

添加到my.cnf中(重啓mysql生效)

general_log=1

general_log_file=’/tmp/general.log’;