A survey on the node failure handling of P2P networks

The application based on P2P technology is one of the most important application of the Internet, but it is often affected by the node failure or abnormal nodes exit. In P2P network, node failure can cause data loss and invalid index, then reduce QoS (Quality of Service) of P2P network, lead to reputation system crashes and so on. Therefore the P2P node failure handling and recovery method can effectively prevent and deal with the mentioned negative influence. Above these problems are very important to improve the robustness and QoS of P2P network. This paper first introduces the background and the causes of node failure of P2P network. Second, we review the main progresses of node failure prediction, node data recovery, super-node selection and routing node algorithm etc. dealing with node failure handling in recent year. Finally, some challenging research problem in the future work is discussed.