【摘要】 针对现有网络地理信息系统(WebGIS)负载均衡技术的缺陷,分析利用集群技术解决WebGIS负载均衡的必要性和可行性,提出基于地图服务器场的WebGIS分布式负载均衡模型,研究地图服务器场分布式动态均衡调度算法,建立试验床,通过一系列的试验结果验证了该算法良好的全局网络负载性。更多还原

【Abstract】 Aiming at deficiencies of load-balancing technology in the existing WebGIS,the paper analyzes the necessity and feasibility of cluster technology and proposes a new distributed load-balancing model based on map server farm to improve WebGIS performance.The algorithm,named distributed dynamic load-balancing scheduling algorithm,is researched as the core component in the model.A test-bed is established.A series of test results prove that the algorithm has good global load balancing performance.更多还原