计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 72-75.doi: 10.11896/j.issn.1002-137X.2018.06.012
• 第十四届全国Web信息系统及其应用学术会议 • 上一篇 下一篇
黄冬梅1, 杜艳玲1,2, 贺琪1, 随宏运1, 李瑶1
HUANG Dong-mei1, DU Yan-ling1,2, HE Qi1, SUI Hong-yun1, LI Yao1
摘要: 数据的完整性和可靠性是保证其能被高效访问的关键,尤其是在云存储环境中,数据副本策略是影响系统性能和保障数据可用性的核心。从数据副本布局的角度,提出了基于多属性最优化的数据副本布局策略(Data Replica Layout Strategy based on Multiple Attribute Optimization,MAO-DRLS)。该策略根据数据的访问热度和存储节点的关键属性特点,为每个数据设置动态的副本数,并选择合适的节点对副本进行布局。实验表明,MAO-DRLS策略能够有效地提升数据副本的利用率,缩短系统的响应时间。
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