Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (19): 210-212.

• 工程与应用 • Previous Articles     Next Articles

Multiple-location dynamic replication strategies of data grids and their application research

FENG Yong1,ZHONG Jiang1,LI Zhi-guo1,2,YE Chun-xiao1   

  1. 1.College of Computer Science,Chongqing University,Chongqing 400030,China
    2.Southwest Research Center,Shanghai Baosight Software Corporation,Chongqing 400041,China
  • Received:2007-05-09 Revised:2007-09-24 Online:2008-07-01 Published:2008-07-01
  • Contact: FENG Yong

数据网格的多选址动态复制策略及其应用研究

冯 永1,钟 将1,李志国1,2,叶春晓1   

  1. 1.重庆大学 计算机学院,重庆 400030
    2.上海宝信软件 西南研发中心,重庆 400041
  • 通讯作者: 冯 永

Abstract: Within data grid environments,dynamic replication is a general mechanism to improve performance and availability for distributed applications.In the paper,the authors firstly review the dynamic replication strategies till now.As the experimentally efficient strategies are based on single-location algorithms,they are not suitable for geographically broad grids with long latency.To address such issues,the authors propose three multiple-location strategies,which are converted into classical mathematic problems that can be solved by some famous approximation algorithms.Then,the authors explain that the strategies are suitable for resource management in the large-scale distributed resource management.

Key words: data grid, dynamic replication, replica placement, large-scale distributed resource management

摘要: 动态复制技术对于提高数据网格的性能非常重要。对目前的动态复制策略进行了综述,鉴于目前效果较好的动态复制策略均为单选址算法,对于延迟较大、分布较广的网格存在很大局限性,提出三种多选址的动态复制策略,并将其转化为经典的数学问题进行求解。然后,给出了多选址动态复制策略在大规模分布式资源管理中的应用。

关键词: 数据网格, 动态复制, 复制选址, 大规模分布式资源管理