Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (22): 83-87.DOI: 10.3778/j.issn.1002-8331.2010.22.026
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RONG Cui-fang,LI Ming-chu,SUN Wei-feng,YAO Hong-yan
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荣翠芳,李明楚,孙伟峰,姚红岩
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Abstract: Through analyzing the advantages and shortages of two replication coherence protocols(aggressive-copy and lazy-copy) in data grids,this paper presents an improved replication coherence architecture and a novel lazy_agg-copy algorithm.Lazy_agg-copy algorithm updates replicas randomly in multilayer architecture.Three algorithms which are Lazy-copy algorithm,aggressive-copy algorithm and lazy_agg-copy algorithm are simulated by a simulator-OptorSim.Simulation results show that lazy_agg-copy algorithm can find better balance in real-time,network load and bandwidth.
摘要: 通过比较和分析数据网格环境下aggressive-copy和lazy-copy两个副本一致性协议,针对两个协议的不足,在扩展副本一致性框架的基础上提出了一种新的副本一致性lazy_agg-copy算法。该算法在多层框架下随机选择部分副本进行一致性更新,可以弥补已有两种算法的缺点。将lazy_agg-copy算法和已有两种在网格模拟软件OptorSim下进行了模拟。模拟结果表明,lazy_agg-copy算法在实时性、网络负载和带宽消耗方面都能取得更好的均衡,可以达到更优的整体效果。
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TP393
RONG Cui-fang,LI Ming-chu,SUN Wei-feng,YAO Hong-yan. Performance-balanced replication coherence algorithm in data grids[J]. Computer Engineering and Applications, 2010, 46(22): 83-87.
荣翠芳,李明楚,孙伟峰,姚红岩. 数据网格中一种均衡性能的副本一致性算法[J]. 计算机工程与应用, 2010, 46(22): 83-87.
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URL: http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2010.22.026
http://cea.ceaj.org/EN/Y2010/V46/I22/83