多种资源下结构化P2P网络的负载均衡方法  

Load balancing method in structured P2P network with multiple resources

作　　者：沈海飞[1] 樊建席[1] 刘文军[1] 王永伟[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006

出　　处：《计算机应用研究》2013年第12期3712-3715,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(61170021);高等学校博士学科点专项科研基金资助项目(20103201110018);苏州市应用基础研究项目(SYG201240);江苏省高校青蓝工程项目

摘　　要：在真实网络环境中,存在多种瓶颈资源,如存储能力、处理请求能力和带宽等。传统的负载均衡方法只考虑了一种瓶颈资源,忽视了其他瓶颈资源对网络性能的影响。针对该问题,建立相似度概念模型,设计用于虚拟服务器转移的转移代价函数,提出可用于任意结构化P2P网络的多种资源负载均衡(MRLB)算法。仿真结果显示,节点上任一资源的负载都随着节点能力的提升而相应增加。MRLB算法能够有效解决传统方法的缺点,实现多种瓶颈资源的负载均衡。There are multiple bottleneck resources in a real network environment, such as storage capacity, ability of processing request and bandwidth. The traditional load balance methods only considered single resource, and ignored the influence from other bottleneck resources on network performance. To address this issue, this paper established similarity concept model, then developed multiple resources load balance （MRLB） algorithm for the arbitrary structured P2P network which used transfelTed cost function designed for virtual server transfer. Simulation results indicate that resource loads on a node can increase with the improvement of node capacity. So MRLB algorithm effectively solves the shortcomings of traditional methods and achieves load balance with multiple bottleneck resources.

关 键 词：负载均衡 多种资源 虚拟服务器 相似度 异构性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]