异构环境下云计算数据副本动态管理研究

Journal of Chinese Computer Systems(2013)

Cited 0|Views4
No score
Abstract
针对现有HDFS(Hadoop Distributed File System)数据副本数目固定,副本放置时未考虑节点异构性问题,本文提出一种异构环境下云计算数据副本动态管理模型DMDR.在副本创建时,DMDR根据节点性能选择最优副本放置节点;在系统运行过程中,基于灰色预测技术,DMDR根据数据的最近访问特征预测数据访问热度,并动态调整副本数目.实验表明,在异构环境下,较之现有HDFS副本管理机制,DMDR可有效减少节点之间数据传输,提高负载均衡,降低作业执行时间.
More
Translated text
Key words
load balance,cloud computing,distributed file system,replica management,gray prediction
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined