mysql连接过多问题

Question

I'm currently working on maintenance of an old project. I have "too many connection problem".I know the error is on the code(not closing connections), but to investigate each frame required more time. " I'm looking for a way to close all connections that are sleep or idle for a long time or if the connection pool is maximum ".

Answer 1

Increase your connections by using set global max connections .

Below:

show variables like "max_connections";

set global max_connections = 200;

Answer 2

if(connection.State==ConnectionState.Open)
{
 connection.Close();
}

Try with this.!