LVS资源负载策略应用研究

Application Research of LVS Resource Load Strategy

LVS (Linux Virtual Server)是提高云平台资源利用率的方案之一,但是由于LVS 负载均衡算法的权值设置不科学以及在分配连接请求时不能实时地平衡任务,导致云环境中的服务器负载失衡,降低了系统对外提供服务的能力.针对以上问题,本文将模拟退火算法和加权最小连接算法相结合,提出一个基于最佳负载因子的负载均衡策略.并通过实验证明,最佳负载因子策略能够使集群中节点负载更加均衡,极大程度上提高了集群资源利用率.

Linux Virtual Server (LVS) is one of the solutions to improve the resource utilization of cloud platform. However, because the weight setting of the LVS load balance algorithm is unscientific and the task cannot be balanced in real time when the connection request is allocated, the server load in the cloud environment is unbalanced, which reduces the ability of the system to provide external services. In view of the above problems, the simulated annealing algorithm and weighted least-connection algorithm are combined in this study to offer an improved balance strategy with optimal load factor. Experiments show that the optimal load factor strategy can make the node load in the cluster more balanced, so that the high availability of the cloud platform is improved.