The Controller

The Controller is a sub-process of the Analytics process, and is responsible for coordinating activity between the cluster members. It manages the storage and retrieval of the inventory of objects within the system. The queries are performed leveraging the GemFire MapReduce function that allows for selective querying. This allows for efficient data querying, as data queries are only performed on select nodes rather than all nodes.

The Controller will monitor the Collector status every minute. It also monitors how long a deleted resource is available in the inventory, and how long a non-existing resource is stored in the database.