Time-Critical Event Dissemination in Geographically Distributed Clouds
Cloud computing has rapidly become a new infrastructure for organizations to reduce their capital cost in IT investment and to develop planetary-scale distributed applications. One of the fundamental challenges in geographically distributed clouds is to provide efficient algorithms for supporting intercloud data management and dissemination. In this paper, the authors present Plume, a generic distributed intercloud overlay for time-critical event dissemination services. Plume aims at improving the interoperability of interclouds in time-critical event dissemination services, such as computing policy updating, message sharing, event notifications and so forth. Plume organizes these distributed clouds into a novel quorum ring overlay to support a constant event dissemination latency.