Received a notice that the number of MySQL connection is not enough, let's see what the reason.
Log in with Root to see that the current number of connections is far from the max_connections connection limit.
Ask my colleagues to send me the wrong message:
C:\users\e1082>mysql-udev_ivr-pdev_ivr-h 192.168.1.150
ERROR 1203 (42000): User DEV_IVR already has more than ' max_user_connections ' active connections
The original is beyond the max_user_connections limit.
Mysql> Show variables like ' max_user_connections ';
+----------------------+-------+
| variable_name | Value |
+----------------------+-------+
| max_user_connections | 100 |
+----------------------+-------+
1 row in Set (0.00 sec)
Under normal circumstances, the development environment should not be the case, after viewing Processlist found a colleague in the test, the connection was not released in time caused.