| 面向教育资源云存储系统的副本管理 |
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| 引用本文： | 黄昌勤,李源,汤庸,黄睿航.面向教育资源云存储系统的副本管理[J].北京邮电大学学报,2013,36(2):93-97. |
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| 作者姓名： | 黄昌勤 李源 汤庸 黄睿航 |
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| 作者单位： | 1. 华南师范大学 教育信息技术学院, 广州 510631; 2. 中山大学 计算机系, 广州 510275 |
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| 基金项目： | 国家自然科学基金项目(60940033);广东省自然科学基金项目(10151063101000046);广东省科技计划项目(2010B010600033,2012A032200018);广东省教育厅科技项目(2012KJCX0037);国家博士后科学基金项目(201003374,20080440121);教育部青年专项项目(ECA080286);华南师大课外科研课题(11JXKC04) |
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| 摘 要： | 根据教育领域中资源访问的聚集性等特征,以教育资源云存储系统架构为基础,设计了副本热度表征副本访问聚集性程度,实现了基于时空特征的副本相关数值计算;同时运用服务集概念和Hadoop分布式文件系统(HDFS)的存储机制提出了三方面的副本管理策略;最后在已开发的教育云存储系统ERS-cloud上进行了一系列实验,结果表明该策略能有效提升教育云存储系统应用效率.
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| 关 键 词： | 云存储 教育资源 服务集 副本管理策略 |
| 收稿时间： | 2012-10-16 |
A Research on Replica Management of Cloud Storage System for Educational Resources |
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| HUANG Chang-qin,LI Yuan,TANG Yong,HUANG Rui-hang.A Research on Replica Management of Cloud Storage System for Educational Resources[J].Journal of Beijing University of Posts and Telecommunications,2013,36(2):93-97. |
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| Authors: | HUANG Chang-qin LI Yuan TANG Yong HUANG Rui-hang |
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| Affiliation: | 1. College of Educational Information and Technology, South China Normal University, Guangzhou 510631, China;
2. Department of Computer Science, Sun Yat-Sen University, Guangzhou 510275, China |
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| Abstract: | According to access characteristics in the field of education, a hot degree is introduced to characterize the extent of locality based on the educational cloud storage system architecture, and the related calculations based on the spatial and temporal characteristics are implemented. The replica management strategies are designed by applying the concept of service set and Hadoop distributed file system (HDFS). Experiment is conducted on the cloud storage system oriented to education resource: ERS-cloud. It is indicated that the replica management mechanism can effectively improve the efficiency of cloud storage system. |
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| Keywords: | cloud storage education resource service set replica management strategy |
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