P2P storage system based on on-line rate and response time of node

doi:10.3778/j.issn.1002-8331.2010.28.001

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (28): 1-5.DOI: 10.3778/j.issn.1002-8331.2010.28.001

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P2P storage system based on on-line rate and response time of node

LIU Zhi-ming^1，2，SHA Ji-chang¹，WAN Ya-ping²，YANG Xiao-hua²

1.College of Information System and Management，National University of Defense Technology，Changsha 410073，China
2.School of Computer Science and Technology，University of South China，Hengyang，Hunan 421001，China

Received:2010-05-25 Revised:2010-08-23 Online:2010-10-01 Published:2010-10-01
Contact: LIU Zhi-ming

结点在线率和响应时间相关的P2P存储系统

刘志明^1，2，沙基昌¹，万亚平²，阳小华²

1.国防科技大学信息系统与管理学院，长沙 410073
2.南华大学计算机科学与技术学院，湖南衡阳 421001

通讯作者: 刘志明

Abstract

Abstract: This paper designs a semi-structured P2P storage system architecture，which effectively reduces the problem of overlay network not matching the location of physical network.Semi-structured P2P overlay network which combines the structured and unstructured characteristics has good scalability and manageability.This paper assigns group according to the response time of detection message and selects super node according to the reputation value which is computed through combining on-line rate and response time of node.The simulation results show that the designed structure reduces join and exit number of messages that each node sends and the search delay of information.It achieves good customer satisfaction.

Key words: semi-structured, response time, failure detection, P2P storage systems

摘要： 设计了一种半结构化的P2P存储系统结构，其有效地减少了结点在物理网络和覆盖网络中的位置不匹配问题。半结构化P2P覆盖网络综合了结构化和非结构化的特点，具有很好的扩展性和可管理性。所提出的半结构化P2P存储系统，通过检测信息的响应时间对结点分组，结合结点的在线率和结点的响应时间计算每个结点的信誉值，对组内每个结点按照信誉值大小排队，并以此为选择超级结点的依据。仿真实验表明，设计的系统结构降低每个结点加入和退出时发送的消息数量，减少了信息检索延迟，取得了较好的用户满意度。

关键词: 半结构化, 响应时间, 故障检测, 对等存储系统

CLC Number:

TP391

LIU Zhi-ming^1，2，SHA Ji-chang¹，WAN Ya-ping²，YANG Xiao-hua². P2P storage system based on on-line rate and response time of node[J]. Computer Engineering and Applications, 2010, 46(28): 1-5.

刘志明^1，2，沙基昌¹，万亚平²，阳小华². 结点在线率和响应时间相关的P2P存储系统[J]. 计算机工程与应用, 2010, 46(28): 1-5.

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P2P storage system based on on-line rate and response time of node

结点在线率和响应时间相关的P2P存储系统

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