Amazon RDS SUPER privilege
No direct access to your DB configuration file. Want to tune your my.cnf/my.ini file? Amazon does not give you direct access to the MySQL configuration file, but instead exposes an API which you could use to achieve the same effect.
without SUPER privilege it is still possible to SET SESSION variables. That is probably an acceptable workaround for the lack of SUPER in most scenarios. Also, GRANT privilege is available so you may add more users with a subset of the master user’s privileges from any MySQL client that is able to connect to the database.
http://aws.amazon.com/articles/2935?_encoding=UTF8&jiveRedirect=1
max_connections Amazon RDS http://dba.stackexchange.com/questions/41829/should-i-increase-max-connections-in-aws-rds-t1-micro-for-mysql
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithParamGroups.html