一种主被动混合式P2P网络快速自恢复机制

An active and passive hybrid mechanism for self-recovery of P2P

当P2P网络中的接点发生错误或者离开信息丢失等情况时容易造成节点的失效以及拓扑结构异常,严重影响P2P网络的效率和健壮度。如何快速重构产生异常的P2P网络结构是文章的研究重点。文章通过将改进的心跳协议作为主动探测措施与作为被动探测措施的信息捎带协议结合,利用根据信息重要度建立的概率模型建立了一种用于解决P2P网络快速重建的机制。该机制使P2P网络自恢复所占用的带宽更小,达到稳定状态的速度更快。

Invalid node and abnormal topological structure will appear when the P2P network has node error and message lost, and this will have a strong impact on the efficiency and robustness of the P2P network. This paper mainly studies the ways to reconstruct the abnormal P2P network structure rapidly. By combining the improved heartbeat protocol, which is the active detection measure, with the attendant message protocol, which is the passive detection measure, and using the probability model which is built according to the information importance, a mechanism is established to solve the problem of P2P network fast rebuilding. This mechanism can make the bandwidth which is occupied by P2P network serf-recovery narrower and have a faster speed to reach the stable condition.