1. The first query the maximum number of connections
show variables like '%max_connections%';
2. Check the current connection:
show processlist;
3. Batch kill the current connection:
Statement temporary files information_schema.processlist connection information table generation needs to dispose of MySQL connection, the temporary file and executes the instructions generated
Gets the current connection id:
select concat('KILL ',id,';') from information_schema.processlist where user='yxyq';
Dump file:
select concat('KILL ',id,';') from information_schema.processlist where user='yxyq' into outfile 'D:/BCSoftware/mysql-8.0.13-winx64/a.txt';
executable file:
source D:/BCSoftware/mysql-8.0.13-winx64/a.txt;
Other kill ways: https://www.cnblogs.com/liang545621/p/9401113.html