| 一种基于最优路径的分布式服务器请求迁移算法 |
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| 引用本文： | 吴伟,郑烇,杨坚,钱斌.一种基于最优路径的分布式服务器请求迁移算法[J].电子技术,2009,36(7):80-83. |
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| 作者姓名： | 吴伟 郑烇 杨坚 钱斌 |
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| 作者单位： | 中国科学技术大学,网络传播系统与控制联合实验室 |
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| 摘 要： | 给出了一种基于最优路径的适用于分布式视频点播服务器系统的请求迁移算法，本算法以提高系统的用户请求接受率和降低带宽消耗为目标，在随机早期迁移算法基础上，根据系统负载均衡度和带宽消耗，动态地选择最优迁移路径。实验结果证明，与随机早期迁移算法相比，这种算法增强了系统各服务器间的负载均衡，在提高了请求接受率的同时降低了带宽消耗，从而提高了系统的总体性能。
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| 关 键 词： | 视频点播 请求迁移 负载均衡 带宽消耗 |
An Optimal Path Based Request Migration Algorithm in Distributed Video-on-Demand System |
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| Wu Wei,Zheng Quan,Yang Jian,Qian Bin.An Optimal Path Based Request Migration Algorithm in Distributed Video-on-Demand System[J].Electronic Technology,2009,36(7):80-83. |
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| Authors: | Wu Wei Zheng Quan Yang Jian Qian Bin |
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| Affiliation: | Wu Wei Zheng Quan Yang Jian Qian Bin(Joint Lab of Network Communication System & Control,University of Science & Technology of China) |
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| Abstract: | An improved request migration algorithm based on optimal migration path is proposed,which is suitable to be used in distributed video-on-demand server system,the aim of the system is to improve the acceptance rate of user's request and reduce the bandwidth consumption.On the basis of the random early migration algorithm,the optimal migration path is dynamically chosen according to the degree of load balance and bandwidth consumption of the system.Simulation results show that,compared with the random early m... |
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| Keywords: | video-on-demand request migration load balancing bandwidth consumption |
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