Section: New Software and Platforms

EventCloud

Scientific Description

The EventCloud architecture is based on a structured P2P overlay network targetting high-performance elastic data processing. Consequently it aims to be deployed on infrastructures like grids, clouds, i.e. whose nodes acquisition and relinquishment can be dynamic and subject to a pay-per-use mode. Each node participating in the overlay networks constituting EventCloud instances, is responsible for managing the storage of subsets of the events, and helps in matching potential looked up events and disseminating them in a collaborative manner. As such, each node is also potentially an event broker responsible for managing subscriptions and routing notifications. The EventCloud provides a high level publish-subscribe API where users can register their interests using SPARQL. When matching RDF data are added, subscribers are automatically notified. Recent work around the EventCloud has focused on efficient algorithms for managing subscription and notification.

Functional Description

The EventCloud is an open source middleware that aims to act as a distributed datastore for data fulfiling the W3C RDF specification (http://www.w3.org/RDF/ ). It allows to store and retrieve quadruples (RDF triples with context) through SPARQL but also to manage events represented as quadruples.

• Participants: Laurent Pellegrino, Fabrice Huet, Françoise Baude, Maeva Antoine and Iyad Alshabani

• Partner: CNRS

• Contact: Françoise Baude