常用SQL：select concat('KILL ',id,';') from information_schema.processlist where db='test'
1、查看进程列表， 找到ID
show processlist;
+--------+--------+--------------------+----------+---------+------+----------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+--------+--------+--------------------+----------+---------+------+----------+------------------+
| 8 | remote | 10.16.30.96:36592 | activity | Sleep | 239 | | NULL |
| 396749 | remote | 172.17.1.122:53028 | activity | Sleep | 1966 | | NULL |
| 397104 | remote | 172.17.3.211:52666 | activity | Sleep | 7 | | NULL |
| 397177 | remote | 172.17.3.211:52819 | activity | Sleep | 7366 | | NULL |
| 397267 | remote | 172.17.1.122:55728 | activity | Sleep | 5741 | | NULL |
| 397268 | remote | 172.17.1.122:55730 | activity | Sleep | 7849 | | NULL |
| 397287 | remote | 172.17.3.150:57151 | activity | Sleep | 7128 | | NULL |
| 397294 | remote | 172.17.3.68:53158 | activity | Sleep | 2882 | | NULL |
| 397296 | remote | 172.17.3.68:53160 | NULL | Sleep | 6492 | | NULL |
2、 查询语句把表锁住了, 赶紧找出第一个Locked的thread_id, 在MySQL的shell里面执行.
kill id
#!/bin/bash
mysql -u root -e "show processlist" | grep -i "Locked" >> locked_log.txt
for line in `cat locked_log.txt | awk '{print $1}'`
do
echo "kill $line;" >> kill_thread_id.sql
done
现在kill_thread_id.sql的内容像这个样子
kill 66402982;
kill 66402983;
kill 66402986;
kill 66402991;
.....
好了, 我们在mysql的shell中执行, 就可以把所有锁表的进程杀死了.
mysql>source kill_thread_id.sql
当然了, 也可以一行搞定
for id in `mysqladmin processlist | grep -i locked | awk '{print $1}'`
do
mysqladmin kill ${id}
done
;