SQLSTATE[08004] [1040] Too many connections

Question

I\'m getting this error messages SQLSTATE[08004] [1040] Too many connections, I\'m using pdo adapter. Do I need to close connection? And how I do that?

Answer 1

The root cause for this error for me was a full hard drive. Keep that in mind as a possibility.

Answer 2

In your mysql my must to run this:

Set Global max_connections=2000

I'm using phpMyAdmin and I executed

Answer 3

In your my.conf file (usually located in /etc) find the line that says:

[mysqld]

And somewhere below that set

max_connections=500

Or whatever numeric value you need.

More information here: MySQL 5.5 Reference Manual: Too many connections.

Answer 4

You need change your my.cnf file.

[mysqld]
set-variable=max_connections=250

Upper the value.