| P2P网中基于文件分片的副本建立策略 |
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| 引用本文： | 黄晓涛,李志永.P2P网中基于文件分片的副本建立策略[J].计算机应用研究,2008,25(1):171-170. |
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| 作者姓名： | 黄晓涛 李志永 |
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| 作者单位： | 华中科技大学,计算机科学与技术学院,武汉,430074;华中科技大学,计算机科学与技术学院,武汉,430074 |
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| 摘 要： | 在大规模P2P网络中,为了提高数据的可用性,可以通过在系统中多个节点上建立数据副本的方法来增加数据的冗余度.为了减小副本建立的开销,可采用一种基于文件分片的副本建立策略,将需要复制的数据文件先进行分片,然后把这些分片在一组选取好的候选节点间进行分发复制.该方法能够充分利用网络带宽,明显减小建立副本所需的时间开销.
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| 关 键 词： | 对等网 副本 文件分片 |
| 文章编号： | 1001-3695（2008）01-0171-03 |
| 收稿时间： | 2006-12-01 |
| 修稿时间： | 2007-02-24 |
Replication strategy based on file partition for P2P network |
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| HUANG Xiao tao,LI Zhi yong.Replication strategy based on file partition for P2P network[J].Application Research of Computers,2008,25(1):171-170. |
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| Authors: | HUANG Xiao tao LI Zhi yong |
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| Affiliation: | (School of Computer Science & Technology, Huazhong University of Science & Technology, Wuhan 430074, China) |
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| Abstract: | In large scale of P2P network, in order to get high data availability, to actively replicate data to other nodes is used to increase data redundance. To reduce replication cost, it was better to use a file-partition based replication strategy. Data file could be partitioned into pieces which would then be distributed and copied within a collection of node selected beforehand. It can sufficiently use the network bandwidth and obviously reduce the replication time cost . |
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| Keywords: | peer-to-peer replica file-partition |
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