地理信息公共服务平台集群架构的研究与设计
发布时间：2018-08-24 19:13
【摘要】：地理信息公共服务平台建设的核心是以城市空间信息为基础,整合多种类、多尺度、多时相、多分辨率,构建数字城市地理空间框架,提供社会行业信息整合载体,面向政府部门、企事业单位和社会公众提供权威、丰富、翔实、便捷、快速的在线地理信息服务。根据地理信息公共服务平台地理信息服务的高性能需求,本课题对地理信息公共服务平台集群架构展开研究。集群即一组计算机,其中每一台计算机称为集群中的一个节点,这些节点通过高速网络连接起来,统一作为计算机资源,对外部世界形成一个透明的系统映像。 本文以“云南省地理信息公共服务平台”建设项目为研究背景,以地理信息公共服务平台为研究对象,主要研究了地理信息公共服务平台中的集群架构与实现。为了改善地理信息公共服务平台的服务能力,本文从理论和实践上探索了一些新技术,并通过对四层集群架构的设计与实现,使平台的服务能力与服务水平得到了改善。 本文所做的主要研究内容可以归纳为以下4点： (1) Nginx多web服务器集群架构的研究与实现。 (2) ArcGIS server GIS中间件服务器集群的研究与实现。 (3)关系型数据库Oracle RAC集群的研究与实现。 (4) Memcached集群缓存机制的研究与实现。 通过这四层集群架构,改善了平台对海量地理信息数据的存取性能问题,以及涉密数据的数据安全等问题。地理信息公共服务平台集群架构对提高在线地理信息服务性能、提升在线地理信息服务稳定性、保障平台的可扩展性具有重要意义。
[Abstract]:The core of the construction of geographic information public service platform is based on urban spatial information, integrating multi-types, multi-scale, multi-temporal, multi-resolution, constructing digital city geospatial framework, providing social and industrial information integration carrier. For government departments, enterprises and institutions and the public to provide authority, rich, informative, convenient, rapid online geographic information services. According to the high performance requirement of geographic information public service platform, this paper studies the cluster structure of geographic information public service platform. Cluster is a group of computers, in which each computer is called a node in the cluster. These nodes are connected by high-speed networks, unified as computer resources, and form a transparent system image to the outside world. This paper takes the construction project of "Yunnan Province Geographic Information Public Service platform" as the research background, takes the geographical information public service platform as the research object, mainly studies the cluster structure and the realization of the geographical information public service platform. In order to improve the service capability of geographic information public service platform, this paper explores some new technologies in theory and practice, and through the design and implementation of four-tier cluster architecture, the service capability and service level of the platform are improved. The main research contents of this paper can be summarized as follows: (1) the research and implementation of Nginx multi-web server cluster architecture; (2) the research and implementation of) ArcGIS server GIS middleware server cluster. (3) Research and implementation of relational database Oracle RAC cluster. (4) Research and implementation of Memcached cluster cache mechanism. Through the four-layer cluster architecture, the access performance of the platform to the massive geographic information data and the data security of the confidential data are improved. The cluster architecture of geographic information public service platform is of great significance to improve the performance of online geographic information service, improve the stability of online geographic information service, and ensure the expansibility of the platform.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P208
本文编号：2201768
[Abstract]:The core of the construction of geographic information public service platform is based on urban spatial information, integrating multi-types, multi-scale, multi-temporal, multi-resolution, constructing digital city geospatial framework, providing social and industrial information integration carrier. For government departments, enterprises and institutions and the public to provide authority, rich, informative, convenient, rapid online geographic information services. According to the high performance requirement of geographic information public service platform, this paper studies the cluster structure of geographic information public service platform. Cluster is a group of computers, in which each computer is called a node in the cluster. These nodes are connected by high-speed networks, unified as computer resources, and form a transparent system image to the outside world. This paper takes the construction project of "Yunnan Province Geographic Information Public Service platform" as the research background, takes the geographical information public service platform as the research object, mainly studies the cluster structure and the realization of the geographical information public service platform. In order to improve the service capability of geographic information public service platform, this paper explores some new technologies in theory and practice, and through the design and implementation of four-tier cluster architecture, the service capability and service level of the platform are improved. The main research contents of this paper can be summarized as follows: (1) the research and implementation of Nginx multi-web server cluster architecture; (2) the research and implementation of) ArcGIS server GIS middleware server cluster. (3) Research and implementation of relational database Oracle RAC cluster. (4) Research and implementation of Memcached cluster cache mechanism. Through the four-layer cluster architecture, the access performance of the platform to the massive geographic information data and the data security of the confidential data are improved. The cluster architecture of geographic information public service platform is of great significance to improve the performance of online geographic information service, improve the stability of online geographic information service, and ensure the expansibility of the platform.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P208
【参考文献】
相关期刊论文 前10条
1 孙立坚,刘纪平,王亮,朱翊;B/S结构下基于Web Services技术的空间分析方法的研究[J];测绘科学;2005年01期
2 李双庆,游莲,程代杰;基于内容的Web集群系统负载均衡策略[J];重庆大学学报(自然科学版);2003年05期
3 周珂,李子丰;基于J2EE平台的安全性研究与实现[J];航空计算技术;2005年02期
4 刘安丰,陈志刚,金亮,陆静波;Web集群系统的几个参数优化设计[J];计算机工程与应用;2003年31期
5 骆宗阳,董玮文,杨宇航,王澄;一种具有高可用性的通用负载均衡技术[J];计算机工程;2003年02期
6 张小芳,胡正国,郑继川,唐焱;高可用性集群技术的研究和应用[J];计算机工程;2003年04期
7 金亮,陈志刚,张松;一种基于内容的可扩展性透明Web Cluster体系结构的设计[J];计算机工程;2004年07期
8 林闯;Web服务器集群请求分配和选择的性能分析[J];计算机学报;2000年05期
9 顾诚,罗建;一种Web服务器集群的可伸缩管理算法[J];计算机应用;2003年07期
10 金雷,谢立;应用系统中集群技术的实现[J];计算机应用研究;2003年01期
，本文编号：2201768
本文链接：https://www.wllwen.com/kejilunwen/dizhicehuilunwen/2201768.html
