The Design and Implementation of Dynamic Load Balancing for Web-Based GIS Services
The Design and Implementation of Dynamic Load Balancing for Web-Based GIS Services
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发表时间：
2001
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通讯作者：
M. Jo;Yun-Won Jo;Jeong-Soo Oh;Si-Young Lee
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作者：
M. Jo;Yun-Won Jo;Jeong-Soo Oh;Si-Young Lee
在当前的web服务器系统体系结构中，最重要的问题之一是动态地处理到达web服务器的负载，以便服务器必须在没有任何延迟、故障或关闭的情况下启用其web站点服务。因此，迫切需要开发web端动态负载平衡技术。本研究将agent设计在Web Server集群中的dispatcher上，通过考虑到达Web Server的负载相关信息，特别是与Map Server的连接，实现对负载的动态分配。此外，实验结果表明，与以前的体系结构相比，我们的体系结构减少了Web-GIS服务的流量。最后，在调度程序上实现的代理将选择集群中流量最低的web服务器。
In the current server system architecture over web, one of the most important concerns is to handle load coming to Web Server dynamically, so that the server has to enable its Web sites service without any delay or failure or shutdown . Therefore, there is fundamental need to develop technology for dynamic load balancing on web side. In this study, the agent is designed on dispatcher in a Web Server cluster and implemented to distribute load dynamically by considering information related to load coming to the Web Server, especially the connection to the Map Server. Moreover, the experimental result shows that our system architecture has less traffic for Web-GIS services comparing previous architecture. Finally, agent implemented on dispatcher will select the web server in cluster, which has the lowest traffic.