基于聚类调度负载均衡的WebGIS模型

A WebGIS Model Based on Cluster Scheduling Load-Balancing Algorithm

为了提高网络地理信息系统(geographic information system,GIS)并发访问性能,研究了现有WebGIS负载均衡技术的缺陷,分析了在大用户量并发访问情况下利用协作任务聚类技术解决WebGIS负载均衡的必要性和可行性,提出了基于聚类调度负载均衡的WebGIS模型,重点研究了聚类调度负载均衡算法,最后建立试验床,通过一系列的试验结果验证了本模型良好的并发性.

In order to improve the concurrent access performance of WebGIS,this paper studies deficiencies of load-balancing technologies in the current WebGIS and analyzes the necessity and feasibility to solve load-balancing in WebGIS based on collaborative tasks clustering technology under the situation of large volume of concurrent accesses.A WebGIS model based on cluster scheduling load-balancing algorithm is proposed.The key is to research the cluster scheduling load-balancing algorithm.A test-bed is established.A series of test results prove that the model has good global load balancing performance.