Question

What file do I modify to increase my MYSQL max connections?

Posted December 14, 2019 796 views
MySQL

My db is giving a “too many connections” error so I need to increase the max number of connections. What (and what path) is the file that I need to modify?

I have searched the topics and submitted a support ticket… but nothing.

This is an excerpt of my error log:
2019/12/13 20:13:02 [error] [exception.CDbException] SQLSTATE[HY000] [2006] MySQL server has gone away
2019/12/13 20:13:02 [error] [application] CDbConnection failed to open the DB connection.
2019/12/13 20:13:02 [error] [exception.CDbException] SQLSTATE[HY000] [1040] Too many connections

Thank you!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×
1 answer

Hi @mxmxmktg,

There are a bunch of different reasons for the “Too Many Connections” error.

Check out this FAQ page on MySQL.com: http://dev.mysql.com/doc/refman/5.7/en/too-many-connections.html

Check your /etc/my.cnf file for “max_connections”. If none exist try:

[mysqld]
set-variable=max_connections=250

However the default is 151, so you should be okay.

Other problems to look out for is the use of persistent connections and running out of diskspace.

Regards,
KDSys

Submit an Answer