Increase “max_connections” value in MySQL

Optimizing the software on the server is essential to ensure you don’t waste resources. For example, increasing the max_connections of MySQL will make your server serve more connections/visitors and use more resources on the dedicated server or vps server.  In this article, we will guide you on how to increase the max_connections value in MySQL.

 

firstly, login to your server and log into MySQL, if you didn’t set any root login for MySQL you can log in by using this command:

mysql

and if you have a username and password for your MySQL server then use this format

mysql -u {username} -p {password}

 

next, find out the current variable in your server by using this command

SHOW VARIABLES LIKE "max_connections";

 

then, change the current max_connections, in this example, we set the max_connections to 450

SET GLOBAL max_connections = 450;

verify the values by checking the max_connections again

show variables like "max_connections";

and the last, you can restart MySQL to take effect.

service mysqld restart

if you are using cPanel you can restart by using this command

/scripts/restartsrv_mysql --restart