A fault-tolerant architecture for ROIA in cloud

Real-time online interactive application (ROIA) is an emerging large scale distributed application in recent years. To satisfy the high demands on performance, ROIA needs a highly robust and efficient architecture to cope with the huge concurrent users. Previous works are almost based on the Client/Server or Peer to Peer mode, and their scalability and resource utilization are relatively low. So we try to take advantage of the cloud computing technologies to achieve higher scalability and resource utilization. However, the node failure is no longer considered to be an accidental event, but a normal one in the cloud computing. Therefore, there are higher requirements for fault tolerance in ROIA. In this paper, we propose a new fault-tolerant architecture for ROIA in cloud, which is based on cell overlapping technique. This new architecture provides redundancy to enhance the robustness and the scalability of ROIA. We focus on analyzing three merits of new architecture: seamless migration across zones, server crash protection and dynamic load balance. This paper sheds a little light to the related further research on ROIA.