FSService (also known as fsService) is a database schema. FS stands for FireStorm.
FSSchema is the FSService database schema. It stores configuration information, such as the defined daemons, processes, worlds, and all of the related configuration parameter values. It also stores database connection information for the worlds.
Master Control connects to this schema to load and edit the configuration information. Live Update, World Push and HeroEngine Publish connect to the schema to retrieve database connection information for connecting to world schemas.