基于集群的可伸缩网络服务体系结构研究与实现

Research and Implementation of Architecture of Cluster based Scalable Network Services

在分析现在和将来网络服务需求的基础上,提出基于集群的可伸缩网络服务体系结构LinuxVirtualServer,分为负载调度器、服务器池和后端存储三层结构。负载调度器采用IP负载均衡技术和基于内容请求分发技术。LVS集群提供了负载平衡、可伸缩性和高可用性,可以应用于建立很多可伸缩网络服务。进而提出地理分布的LVS集群系统,可节约网络带宽,改善网络服务质量,具有良好的抗灾害性。

On the analysis of present and future network service requirements, we present the architecture of cluster based scalable network services called Linux Virtual Server, which has three tiers of load balancer, server pool and backend storage. The load balancer supports IP load balancing and content based request distribution techniques. The LVS cluster provides load balancing, scalability and availability, which can be deployed to build many scalable network services. We give a geographically distributed LVS clusters, which can save bandwidth, improve quality of network services and be disaster tolerant.