Availability oriented data distribution algorithm in P2P network

doi:10.3778/j.issn.1002-8331.2010.14.030

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (14): 103-105.DOI: 10.3778/j.issn.1002-8331.2010.14.030

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Availability oriented data distribution algorithm in P2P network

YANG Zhe^1，2，LI Ling-zhi^1，2

1.School of Computer Science & Technology，Soochow University，Suzhou，Jiangsu 215006，China
2.Provincial Key Laboratory for Computer Information Processing Technology，Soochow University，Suzhou，Jiangsu 215006，China

Received:2008-11-12 Revised:2009-01-16 Online:2010-05-11 Published:2010-05-11
Contact: YANG Zhe

一种面向可用性的P2P数据分发方法

杨哲^1，2，李领治^1，2

1.苏州大学计算机科学与技术学院，江苏苏州 215006
2.苏州大学江苏省计算机信息处理技术重点实验室，江苏苏州 215006

通讯作者: 杨哲

Abstract

Abstract: The P2P network consists of hyper dynamic nodes.The durations of session are extremely different.Frequent join and leave cost the whole system more maintenance and lower data availability.Availability oriented data distribution algorithm in P2P network is proposed.The main idea of it is to analyze the data hotspot and availability and increase the copies of data.And the results of simulation indicate that it can improve the data availability and system efficiency，while reduce the cost of maintenance and minimize the scope of routing.

Key words: peer-to-peer network, data availability, data distribution

摘要： 对等网络由高度动态的节点构成，节点间会话时间极端异构。对等节点频繁加入和退出导致对等网络维护开销增大，数据可用性降低。面向可用性的对等网络数据分发方法，针对热点数据和节点可用性的分析，通过增加系统中数据的副本数量，提高数据的可用性，同时减小消息扩散的范围，提高系统的效率，克服会话时间异构性。实验结果表明，该方法可以有效提高数据可用性，降低系统的维护开销。

关键词: 对等网络, 数据可用性, 数据分发

CLC Number:

TP301
TP391

YANG Zhe^1，2，LI Ling-zhi^1，2. Availability oriented data distribution algorithm in P2P network[J]. Computer Engineering and Applications, 2010, 46(14): 103-105.

杨哲^1，2，李领治^1，2. 一种面向可用性的P2P数据分发方法[J]. 计算机工程与应用, 2010, 46(14): 103-105.

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Availability oriented data distribution algorithm in P2P network

一种面向可用性的P2P数据分发方法

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