Exception occurred. 
Array
(
    [db_to_use] => mysql
    [db_host] => ak-generalhost-mysql-prod.c0l3nzk4otyj.us-east-1.rds.amazonaws.com
    [db_username] => admin
    [db_password] => 2zRGYA9bhNRTrEthYsF9
    [db_name] => aksite
)
SQLSTATE[HY000] [2002] Connection refused