Administration Guide › Aggregation and Correlation Engine 2 (ACE2) › ACE2 Manager Components

ACE2 Manager Components

ACE2 is subdivided into several main components. Each component is responsible for a specific part of the calculation management process.

The following are the Components:

Tasks Manager

Maintains a repository of all the tasks handled by ACE2 according to events received from the CONTRACT Bridge.

Correlations Manager

Handles the connection between a task and the resources related to it through metric registration.

• Given a specific data event, it determines which tasks were affected.
• Given a task and a time stamp, it determines the homogeneous list of resources relevant to this task.

Topology Manager

Supplies answers regarding the resources tree structure and the effect of a change in the resources tree.

Calculation Boundaries

Aggregates the effect external events have on tasks. Calculation Boundaries determine the lower and upper bounds of the next calculation. The earliest event received determines the lower bound. The upper bound limits are based on these events:

• Events that arrived which are later than the current upper bound
• Lifecycle events such as period end.

Calculations are not initiated when no events occur in the system.

Scheduler

Initiates calculations based on the decisions made by the Analyzer. The scheduler divides the calculations into homogeneous units. If the analyzer identifies a need for a preceding recalculation, the scheduler stops a recalculation.