Information System. The Information System (IS) plays a central role in a gCube-based Infrastructure by implementing the features supporting the publishing, discovery and ‘real-time’ monitoring of the set of resources (cf. Section 2.1) forming a gCube-based infrastructure. It acts as the registry of the infrastructure, i.e. all the resources are registered there and every service partaking to the infrastructure must refer to it to dynamically discover the rest of Infrastructure constituents. For each resource, two kinds of information will be published: • the profile, statically characterising the resource, e.g. its type; • the status, characterising the operational status of the resource, e.g. indicators of the size of the resource currently managed . Because of its central role, key requirements in terms of quality of service for such a subsystem are performance, scalability, freshness and availability. Moreover, facilities supporting the interaction with such subsystem have been included in the gCore Framework (cf. Section 4.8).
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Sources: D4science System High Level Design, D4science System High Level Design