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协同系统中可扩展的动态容错模型研究及实现
引用本文:王玎,金海,袁平鹏,黎时才.协同系统中可扩展的动态容错模型研究及实现[J].小型微型计算机系统,2006,27(6):1054-1058.
作者姓名:王玎  金海  袁平鹏  黎时才
作者单位:华中科技大学,计算机科学与工程系,湖北,武汉,430074
摘    要:针对协同系统的特点以及其对可靠性、实时性和性能等方面的要求,提出了一种可扩展的动态容错模型xDFT(Extensible Dynamic Fault Tolerance Model,xDFT).本容错模型将容错支持结构和容错机制结合在一起:在本模型中首先定义了一种可扩展的、动态容错支撑结构;基于此,提出了一种容错机制.xDFT模型能够根据系统负载状况设定服务节点的负载阈值,改变服务冗余度,不仅提高了服务效率,而且以一种简单有效的方式实现了负载平衡.

关 键 词:计算机支持协同工作  地理信息协同标注系统  容错
文章编号:1000-1220(2006)06-1054-05
收稿时间:02 1 2005 12:00AM
修稿时间:2005-02-01

Research and Implementation of Extensible Dynamic Fault Tolerance Model in Cooperative System
WANG Ding,JIN Hai,YUAN Ping-peng,LI Shi-cai.Research and Implementation of Extensible Dynamic Fault Tolerance Model in Cooperative System[J].Mini-micro Systems,2006,27(6):1054-1058.
Authors:WANG Ding  JIN Hai  YUAN Ping-peng  LI Shi-cai
Affiliation:Department of Computer Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract:According to the requirement of high-availability, real-time and high performance in cooperative system, an extensible dynamic fault tolerance model (xDFT) is proposed in the paper. The model combines fault tolerance supporting architecture and fault tolerance method: Firstly, an extensible dynamic fault tolerance supporting architecture is defined; then a fault tolerance mechanism, based on the fault tolerance supporting architecture is proposed. xDFT model can dynamically set load quality of server node with variability of system load to change server redundancy. It not only improves the service efficiency, but also implements load balancing in a more efficient and simply way.
Keywords:CSCW  CoGIS  fault tolerance
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