Research, Simulation And Imuplementation Of The Strategy Of Cluster Merge And Split N HP2P Network

In recent years, P2P network has always taken the focus attentions from both of industry and academia. P2P network structure is the basis of P2P network, so its research is very significant. Nowadays, Hybrid P2P network structure is a research hotspot, and the super node selection within Clusters, partition of Clusters, as well as splitting and merging of Clusters are the key and difficult problems.This paper researches the new Hybrid Hierarchical P2P network named HP2P, and proposes a strategy for splitting and merging of Clusters. HP2P uses Chord as the upper layer and Cluster as the lower one, each Cluster joins the Chord ring as a virtual node. If the size of a Cluster exceeds the upper bound, the Cluster will be split into two smaller ones. And if the sizes of the Clusters are below the lower bound, the two Clusters will be merged into one. Based on this strategy, this paper builds a simulation model and experiments, the result illustrates that when the upper bound and lower bound are set to 500 and 100 respectively, the splitting and merging strategy improves the stability and query efficiency of the HP2P network, and let it have load balancing features. Finally the strategy is implemented within the HP2P network module.