max : maximum

connection

max_connection

:
nano /etc/my.cnf
:
[mysqld]
max_connections=600
max_user_connections=600
:
service mysql restart
---------------------------------------------------------------

max_user_connections

[mysqld] :

max_user_connections = 1000

ctrl +x
y

enter

.

.

service mysql restart


--------------------------------------------------------------------

500 .
500 Database Error .

15 .

.
----------------------------------------------------------------------------------