MySQL "Too many connections" Error
June 15, 2011 / Jigar Patel
“Too many connections” error means that all available connections are in use by other clients. The number of connections permitted is controlled by max_connections setting in /etc/my.cnf file.
To fix this issue you can either increase the number of max_connections (not recommended) or analyze active processes and kill them. Running this script will kill all active processes.