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数据网格中的副本定位 被引量:1

Replica Location in Data Grid
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摘要 在数据网格中,数据副本的定位是副本管理的一个关键问题,是数据网格环境中数据访问和管理的基础。本文分析了当前对数据副本定位所采用的集中式和分布式的定位方法中存在的不足,提出了一种混合式的副本定位策略,将数据副本的定位信息分散地存储于不同的域定位节点中,通过逻辑上集中的逻辑文件定位索引实现了对数据副本的准确定位。 Replica location is the key problem of replica management in a data grid.It is also the basis of data access and management.This paper analyzes the pitfall of centralized and distributed replica locations that are used in replica location.By proposing a hybrid strategy of data replica location,scattering replica location information in different domain location nodes,logical file name location index,which is logically centralized,can be used to locate replica information.
出处 《计算机系统应用》 2010年第10期71-75,共5页 Computer Systems & Applications
基金 国家自然科学基金(60873081 U0835003 M0921005) 高等学校博士学科点专项科研基金(20090162110072)
关键词 数据网格 副本定位 副本目录 数据副本 逻辑文件 物理文件 data grid replica location replica catalog data replica logical file physical file
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