MySQL慢查询日志分割

mysql> set global slow_query_log=0;

Query OK, 0 rows affected (0.00 sec)

 

mysql> set global slow_query_log_file='/data/mysql_33096/mysqllog/slow_query_2014-06-09.log';

Query OK, 0 rows affected (0.00 sec)

 

mysql> show variables like 'slow%';

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

| Variable_name | Value |

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

| slow_launch_time | 2 |

| slow_query_log | OFF |

| slow_query_log_file | /data/mysql_33096/mysqllog/slow_query_2014-06-09.log |

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

 

mysql> set global slow_query_log=1;

Query OK, 0 rows affected (0.00 sec)

mysql> show variables like 'slow%';

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

| Variable_name | Value |

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

| slow_launch_time | 2 |

| slow_query_log | ON |

| slow_query_log_file | /data/mysql_33096/mysqllog/slow_query.log |

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

3 rows in set (0.00 sec)

 

---

/root/slowlog.sh脚本

 

#!/bin/bash

####split mysql slow-query-log#######

LOGDIR=/data/mysqllog

DATE=`date +"%Y-%m-%d"`

user=xxx

passwd=****

#stop slow_query_log

mysql -u$user -p$passwd -e "set global slow_query_log=0"

#reset the filename of slow_query_log

mysql -u$user -p$passwd -e "set global slow_query_log_file='${LOGDIR}/slow_query_${DATE}.log'"

#enable slow_query_log

mysql -u$user -p$passwd -e "set global slow_query_log=1"

#remove slow_query_log 7days ago.

cd $LOGDIR

find ./slow_query* -ctime +7 -exec rm -f {} \;

---

定时任务：

 

[wy@dev88 home]$ sudo crontab -e

00 0 * * * /root/slowlog.sh