Distributed service recovery for real-time pub/sub services on disaster management

How to exchange information between parties in a mega-scale disaster management system is one of the fundamental challenges to support timely and efficient disaster response and relief. Specifically, the timeliness, scalability, and availability are three desirable features for information exchange. We call the framework to support information exchange with the three features an Open Information Gateway, OIGY in short. In this paper, we present the challenges of information gateway, and the design of the communication protocols and the fundamental components and distributed service recovery algorithms to support the aforementioned features. The algorithm aims at recovering the real-time publish and subscription services without the global information of network topology, available service brokers, and publish/subscription databases. A centralized algorithm is also presented for small scale networks.