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电子学报  2013 

面向云计算的键值型分布式存储系统研究

DOI: 10.3969/j.issn.0372-2112.2013.07.025, PP. 1406-1411

Keywords: 云计算,键值,分布式存储系统,线性哈希,故障恢复

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Abstract:

对于数据密集型的云计算应用,基于磁盘的存储系统很难同时满足它们对性能与可用性的需求.本文提出了一种以内存为主设备、以磁盘为辅助设备的键值型分布式存储系统M-Cloud,能提供大数据读写、备份及恢复等存储服务功能.M-Cloud通过将数据全部装入服务器集群内存中的方式提高系统整体性能,并设计了分区线性哈希算法以实现负载均衡和高扩展性,设计了相应的数据备份与故障快速恢复策略以保证系统可靠性.仿真实验结果表明,M-Cloud具有较高的性能与可用性,对系统进一步改进和优化后具有应用于实际生产环境中的潜力,可为用户提供高质量的存储服务.

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