基于QoS关联分析的分布式系统可生存性评估

基金项目:

国家自然科学基金(61073043, 61073041, 61100008); 黑龙江省自然科学基金(F200901, F201023); 高等学校博士学科点专项科研基金(20112304110011); 中央高校基本科研业务费专项资金(HEUCF061002)

详细信息

Distributed System Survivability Evaluation Based on the Correlations Analysis of QoS

College of Computer Science and Technology,Harbin Engineering University Harbin 150001

摘要: 可生存性分析技术的研究成果中缺少对运行系统进行在线、实时评估的方法, 而分布式系统的规模逐渐增加使得传统的基于数学模型的方法无法应用. 该文首先分析了服务质量(QoS)是系统生存性能力的外在表现形式; 其次, 提出基于服务质量属性关联分析的分布式系统可生存性层次化评估模型; 再给出了QoS之间关联性的计算方法以及对关键属性及分布式系统可生存性的量化评估方法; 最后, 在实验环境中考察了3种关键服务的一周生存性评估情况, 以及攻击时系统可生存性的变化情况, 并与其他算法进行了对比分析.
- 关联分析 /
- 分布式计算机系统 /
- 评估模型 /
- 服务质量 /
- 可生存性
Abstract: Quality of service (QoS) as the manifestation of system viability is analyzed in this paper. A hierarchical evaluation model for the distributed system survivability based on the attributes association analysis of QoS is proposed. The calculation method for the correlations of QoS and the quantifiable evolution method for key attributes and distributed system survivability are given. The evaluating situation of survivability of three kinds of key services during one week is observed and studied by experiments. The comparative analysis with other algorithms is also presented.
- correlation analysis /
- distribution computer system /
- evaluation model /
- quality of service /
- survivability