Abstract: In order to enhance the performance of the concurrent access in the WebGIS, this paper proposes a loading balance scheme based on parameter weighted method. This scheme considers three technical factors on the WebGIS server in terms of processing capability, response time and service loading. By using the general parameter weighted method, it implements the solution of geographic map sever selection in the .NET platform. Microsoft ACT stress loading test is conducted and the results demonstrate that the scheme has high stability, concurrency and anti-load capacity.

Key words: WebGIS, loading balance, parameter weighted method

摘要： 针对传统万维网地理信息系统并发访问能力不强的缺点，提出基于参数加权法的负载均衡策略。考虑服务器的处理能力、响应时间和服务负载，采用综合参数加权法解决地图服务器的选择问题。在.NET平台下实现该策略，采用Microsoft ACT工具对其进行压力负载测试，结果证明其稳定性、并发性和抗负载能力较高。

关键词: 万维网地理信息系统, 负载均衡, 参数加权法

CLC Number: 

• TP393