MySQL 杀进程

 SHOW VARIABLES LIKE '%max_connections%';

 SHOW GLOBAL STATUS LIKE 'Max_used_connections';

 SELECT concat('KILL ',id,';') FROM information_schema.processlist
 WHERE USER IN('a','b')  
 AND TIME >20 
 AND state IN('Sending DATA','statistics','Creating sort index');

 SELECT * FROM information_schema.processlist WHERE USER IN('a','b')  AND TIME >20 ;