• 论文 •    

基于生产消耗模型与松弛时间的数据网格服务可靠性研究

曲明成,吴翔虎,廖明宏,杨孝宗,左德承   

  1. 1.哈尔滨工业大学 计算机科学与技术学院,黑龙江哈尔滨150001;2.厦门大学 软件学院,福建厦门361005
  • 出版日期:2009-11-15 发布日期:2009-11-25

Data grid service reliability analysis based on production & consumption model and slack time

QU Ming-cheng, WU Xiang-hu, LIAO Ming-hong, YANG Xiao-zong, ZUO De-cheng   

  1. 1.School of Computer Science & Technology, Harbin Institute of Technology, Harbin 150001, China;2.Software School, Xiamen University, Xiamen 361005, China
  • Online:2009-11-15 Published:2009-11-25

摘要: 针对现有数据网格可靠性相关研究的不足,引入了生产者与消耗者模型,并提出扩展松弛时间模型。理论证明生产消耗模型使数据服务可靠性远小于网格数据可靠性,而扩展模型进一步降低了数据服务可靠性。通过仿真实验,将模型的数据服务可靠性与网格数据可靠性进行了比较,并与理论推导进行对比分析,取得了较好的效果,证明了该模型的有效性。

关键词: 数据网格服务, 可靠性, 生产消耗模型, 松弛时间, 并行数据传输

Abstract: Considering insufficient studies on Data Grid Reliability (DGR), a Production & Consumption Model (PCM) was introduced and an Extended Slack Time Model (ESTM) was put forward. Theoretical proof showed that PCM made Data Service Reliability (DSR) far less than DGR, and ESTM further reduced DSR. DSR and DGR were compared in simulation experiment, and comparative analysis between theory and experiment was carried out. Results showed that the PCM and ESTM were correct and effective.

Key words: data grid service, reliability, production & consumption model, slack time, parallel data transfer

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