摘要： 在LVS的基础上,设计了多负载均衡器的集群系统。在负载均衡器间采用了一种新的环形备份方法;负载均衡器均处于工作状态 ,互相提供备份;不需要专门的备份负载均衡器,具有很好的可扩展性。采用实时同步连接表的方法,在负载均衡器出现故障时可以不间断已有的网络连接,从而提高了集群系统的可用性。

关键词: 负载均衡器, 集群系统, 故障恢复, 环形备份

Abstract: On the basis of LVS, a multi-load-balancer cluster system is designed. A new backup strategy called ring-backup is used. In this strategy no stand-alone backup is needed. Every load-balancer is in work, acting as backup for one another, which provides an excellent performance on scalability. By means of synchronizing the connection tables, the existing connections remain available when one or more load-balancers are in trouble, which improves the availability of cluster system.

中图分类号: 

• TP316