select concat(‘kill ‘,id,’;’) from information_schema.processlist where user=’root’;
+————————+
| concat(‘kill ‘,id,’;’)
+————————+
| kill 3101;
| kill 2946;
+————————+
2 rows in set (0.00 sec)

mysql> select concat(‘kill ‘,id,’;’) from information_schema.processlist where user=’root’ into outfile ‘/tmp/a.txt’;
query ok, 2 rows affected (0.00 sec)

mysql> source /tmp/a.txt;
query ok, 0 rows affected (0.00 sec)

方法二，直接进入mysql找到information_schema的processlist全选删除就可以了。
方法三，进入mysql，show processlist; kill id