基于路径与网络质量相结合的动态迁移算法  

Algorithm of Dynamic Migration Based on Path and Quality of Internet

作　　者：王子珍[1] 李晋军[1] 宋秋贵[1] 陈兵[1] WANG Zi-zhen LI Jin-jun SONG Qiu-gui CHEN Bing(North Automatic Control Technology Institute, Taiyuan 030001, China)

机构地区：[1]北方自动控制技术研究所,山西太原030001

出　　处：《中北大学学报（自然科学版）》2017年第2期173-177,185,共6页Journal of North University of China(Natural Science Edition)

摘　　要：针对现有旅级指挥信息系统中存在服务器单点失效问题,设计并实现了基于路径与网络质量相结合的服务动态迁移机制.该机制基于分布式指挥系统,是服务器集群技术的应用.该算法有以下特点:可以针对不同请求分析网络质量,确定网络资源,制定动态阀值,形成节点候选方案;引入时间距离,并与负载组合,选择最佳迁移路径;取消前端服务器,实现系统容错,同时实现服务动态迁移.经实验证明,该算法与轮循算法相比,性能提高49.65%,一定程度上节约了时间成本.该算法已应用到旅级指挥信息系统中.Focusing on the problem of the single point failure within server of Brigaded Command Infor- mation System, the dynamic service migration mechanism based on path and quality of Internet is de- signed and achieved. The mechanism is the application of Web-server System, which is based on distrib- uted command system. The algorithm existed features below. Aiming at different request, the quality of net is analyzed, resource and threshold are confirmed Introduce the time distance and combine with the load and node candidate scheme is earning into being; to select the best migration path; Canceling front server, realizing system fault tolerance and service dynamic migration. According to the experiments, the performance of the algorithm is 49. 65G higher than round robin algorithm, and the time cost is saved. The algorithm has been applied to Brigaded Command Information System.

关 键 词：服务迁移 网络质量 路径 面向服务的体系结构(SOA) 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]