节点在线率和资源热度相关的P2P存储系统副本复制和修复策略
收稿日期: 2010-07-27
修回日期: 2010-11-12
网络出版日期: 2011-02-25
基金资助
国家863计划资助项目(2009AA01A401);国家自然科学基金资助项目(70671051);教育部创新团队(IRT0725);湖南省教育厅课题(08C756)
Replica Copy and Repair Strategies Combining the Node Online Rate and the Resource Heat for the P2P Storage Systems
Received date: 2010-07-27
Revised date: 2010-11-12
Online published: 2011-02-25
刘志明1,3,沙基昌1,万亚平2,3,阳小华3 . 节点在线率和资源热度相关的P2P存储系统副本复制和修复策略[J]. 计算机工程与科学, 2011 , 33(2) : 186 -190 . DOI: 10.3969/j.issn.1007130X.2011.
In the semistructured P2P storage system architecture, replica is the effective assurance to improve data availability. This paper measures the number of replicas according to the Node Online Rate and the frequency value of the resources accessed. It better reflects the node behavior characteristics of highly dynamic P2P networks, and designs a recovery strategy for redundant data. The experimental results show that the design method uses a certain amount of bandwidth for maintenance, but the availability of the resources in the network is significantly enhanced.
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