摘要
针对已有的解决 Internet服务器性能瓶颈和可靠性问题的方法所存在的不足 ,提出基于 IP层负载平衡调度的解决方法 ,将一组服务器构成一个可伸缩的、高可用的虚拟 Internet服务器 .通过在服务机群中透明地加入和删除结点以实现系统的伸缩性 ;通过检测结点或服务进程故障和正确地重置系统达到高可用性 .详细讨论了虚拟 Internet服务器的体系结构、设计方法和实现技术 ,并给出了相应的性能测试结果 .关键词 Internet服务器 ,负载平衡 ,高可用性 ,网络地址转换 .
The shortcomings of the existing solutions to the performance bottleneck and reliability problem of Internet servers are analyzed, and a solution based on IP level load balancing is given in this paper, in which a scalable and highly available virtual Internet server can be built on a cluster of servers. Scalability is achieved by transparently adding or removing a node in the cluster. High availability can be provided by detecting the node or daemon failures and reconfiguring the system appropriately. The architecture, design and implementation of the virtual Internet server are discussed in detail. Brief performance testing results are also provided.
出处
《软件学报》
EI
CSCD
北大核心
2000年第1期122-125,共4页
Journal of Software
