北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (2): 93-97.doi: 10.13190/jbupt.201302.93.huangchq

• 研究报告 • 上一篇    下一篇

面向教育资源云存储系统的副本管理

黄昌勤1,2, 李 源1, 汤 庸2, 黄睿航1   

  1. 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
  • 收稿日期:2012-10-16 修回日期:2012-10-27 出版日期:2013-04-30 发布日期:2013-03-25
  • 通讯作者: 黄昌勤 E-mail:cqhuang@zju.edu.cn
  • 作者简介:黄昌勤(1972-),男,教授,博士生导师,E-mail:cqhuang@zju.edu.cn
  • 基金资助:

    国家自然科学基金(60940033);广东省自然科学基金项目(10151063101000046);广东省科技计划项目(2010B010600033,1012A032200018);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(ECA080286);华南师大课外科研课题(11JXKC04)

A Research on Replica Management of Cloud Storage System for Educational Resources

HUANG Chang-qin1,2, LI Yuan1, TANG Yong2, HUANG Rui-hang1   

  1. 1. College of Educational Information and Technology, South China Normal University, Guangzhou 510631, China;<br>2. Department of Computer Science, Sun Yat-Sen University, Guangzhou 510275, China
  • Received:2012-10-16 Revised:2012-10-27 Online:2013-04-30 Published:2013-03-25

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.

关键词: 云存储, 教育资源, 服务集, 副本管理策略

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.

Key words: cloud storage, education resource, service set, replica management strategy

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