一个P2P搜索引擎的架构和实现

P2P搜索技术是P2P研究中的一个重要的领域.文中介绍了一个基于P2P结构化覆盖网络的分布式搜索引擎的架构和实现.该搜索引擎采用了三层架构,良好的层次架构减少了搜索引擎核心算法与P2P覆盖网络协议和具体应用间的依赖,使得搜索引擎可以移植到不同的P2P结构化覆盖网络之上.由于P2P搜索过程中会消耗大量的网络带宽,所以该搜索引擎使用了一些优化算法,它们不仅减少搜索过程带来的带宽消耗,而且保证了系统的可伸缩性.

Architecture and Implementation of a Peer- to- Peer Search Engine

Peer-to-Peer(P2P)search is an important field in P2P study.This paper presents the ar- chitecture and implementation of a distributed search engine based on P2P structure overlay network.The search engine use s a three-tier architecture which separates the concerns of search techniques,overlay net- work and the applications.In this way,the search engine can be deployed with ease in different overlay net- works.In view of the high bandwidth cost in search,several optimizations are applied to the search engine not only to reduce the cost,but also ensure scalability.