一种地理信息服务动态负载均衡算法

A Geographical Information Service Load Balancing Algorithm

随着网络地理信息服务技术的发展,如何基于负载均衡实现地理信息服务资源的智能化调度,从而提高服务系统的并发访问能力是当前研究的重点。提出一种动态负载均衡算法,首先将不同的地理信息服务类型与对应的服务器组相匹配,将RED算法与双阈值方法有效结合判定服务节点的负载状态,并在一定周期内对服务进行了基于加权概率的调度。最后搭建了一个基于服务器集群的实验系统,实验验证了本文方法的有效性。

Intelligent scheduling of geographical information resources based on load balancing for improved concurrent access to a service system is a focal point of current study.This paper presents a method for dynamic load balancing;different types of geographical information service are matched with the corresponding server group,and then the RED algorithm is combined with the double threshold method to effectively judge the load state of server nodes.The service is scheduled based on weighted probabilities for a given period.Finally,a experiment system was built based on a server cluster.This experiment illustrates the effectiveness of the method presented in this paper.