摘要： 提出一种无结构纯P2P的副本一致性维护算法。利用副本节点发起的第一次更新消息在P2P网络中的广播，由其他收到消息的副本节点给出响应，构建副本链。副本链建立后，更新消息在副本节点间进行传播，不再在网络中洪泛。副本链的维护通过记录首次发起更新的副本节点IP地址完成。仿真试验证明该算法是简单有效的。

关键词: 非结构化纯P2P, 副本一致性, 洪泛, 副本链

Abstract: This paper presents a replica chain based consistency maintenance algorithm in unstructured P2P systems. It utilizes the broadcasting of update message to create a replica chain of a file when the update is firstly initiated by a replica node. After that update message is transferred through the replica chain without flooding. And the maintenance of the chain is performed by the broadcasted message recorded by every node receiving it. Experiments with this algorithm on the PeerSim platform show that the algorithm is effective.

Key words: unstructured pure P2P, replica consistency, flooding, replica chain

中图分类号: 

• TP393.09