基于值模型的数据副本替换算法

Q4 Engineering Beijing Youdian Xueyuan Xuebao/Journal of Beijing University of Posts And Telecommunications Pub Date : 2006-01-01 DOI:10.1049/cp:20051475

Yang Xiao-dong, Xu Hui-min

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引用次数: 1

摘要

针对数据网格中的高变化环境，提出了一种基于值模型的数据副本替换算法，并介绍了副本值的计算算法。该算法用于数据副本的替换。当复制过程中存储空间不足时，会删除值最小的副本。该算法可以提高并保持访问数据网格中文件的网格作业的高总体吞吐量。实验结果表明，该算法可以获得较好的网格任务访问数据副本的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Data Replica Replacement Algorithm Based on Value Model

Adapting to the high variation environment in data grid,a data replica replacement algorithm based on value model is proposed and the arithmetic to calculate replica value is introduced.The algorithm is used on data replica replacement.When there is not enough storage space during replication,the replica whose value is the least will be deleted.This algorithm can improve and maintain a high overall throughput of grid jobs that access files in a data grid.Experimental results show that the proposed algorithm can obtain better performance for grid task to access data replica.

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