【摘要】：地理信息公共服務(wù)平臺(tái)建設(shè)的核心是以城市空間信息為基礎(chǔ),整合多種類(lèi)、多尺度、多時(shí)相、多分辨率,構(gòu)建數(shù)字城市地理空間框架,提供社會(huì)行業(yè)信息整合載體,面向政府部門(mén)、企事業(yè)單位和社會(huì)公眾提供權(quán)威、豐富、翔實(shí)、便捷、快速的在線地理信息服務(wù)。根據(jù)地理信息公共服務(wù)平臺(tái)地理信息服務(wù)的高性能需求,本課題對(duì)地理信息公共服務(wù)平臺(tái)集群架構(gòu)展開(kāi)研究。集群即一組計(jì)算機(jī),其中每一臺(tái)計(jì)算機(jī)稱(chēng)為集群中的一個(gè)節(jié)點(diǎn),這些節(jié)點(diǎn)通過(guò)高速網(wǎng)絡(luò)連接起來(lái),統(tǒng)一作為計(jì)算機(jī)資源,對(duì)外部世界形成一個(gè)透明的系統(tǒng)映像。 本文以“云南省地理信息公共服務(wù)平臺(tái)”建設(shè)項(xiàng)目為研究背景,以地理信息公共服務(wù)平臺(tái)為研究對(duì)象,主要研究了地理信息公共服務(wù)平臺(tái)中的集群架構(gòu)與實(shí)現(xiàn)。為了改善地理信息公共服務(wù)平臺(tái)的服務(wù)能力,本文從理論和實(shí)踐上探索了一些新技術(shù),并通過(guò)對(duì)四層集群架構(gòu)的設(shè)計(jì)與實(shí)現(xiàn),使平臺(tái)的服務(wù)能力與服務(wù)水平得到了改善。 本文所做的主要研究?jī)?nèi)容可以歸納為以下4點(diǎn)： (1) Nginx多web服務(wù)器集群架構(gòu)的研究與實(shí)現(xiàn)。 (2) ArcGIS server GIS中間件服務(wù)器集群的研究與實(shí)現(xiàn)。 (3)關(guān)系型數(shù)據(jù)庫(kù)Oracle RAC集群的研究與實(shí)現(xiàn)。 (4) Memcached集群緩存機(jī)制的研究與實(shí)現(xiàn)。 通過(guò)這四層集群架構(gòu),改善了平臺(tái)對(duì)海量地理信息數(shù)據(jù)的存取性能問(wèn)題,以及涉密數(shù)據(jù)的數(shù)據(jù)安全等問(wèn)題。地理信息公共服務(wù)平臺(tái)集群架構(gòu)對(duì)提高在線地理信息服務(wù)性能、提升在線地理信息服務(wù)穩(wěn)定性、保障平臺(tái)的可擴(kuò)展性具有重要意義。
[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.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：P208

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 孫立堅(jiān),劉紀(jì)平,王亮,朱翊;B/S結(jié)構(gòu)下基于Web Services技術(shù)的空間分析方法的研究[J];測(cè)繪科學(xué);2005年01期

2 李雙慶,游蓮,程代杰;基于內(nèi)容的Web集群系統(tǒng)負(fù)載均衡策略[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);2003年05期

3 周珂,李子豐;基于J2EE平臺(tái)的安全性研究與實(shí)現(xiàn)[J];航空計(jì)算技術(shù);2005年02期

4 劉安豐,陳志剛,金亮,陸靜波;Web集群系統(tǒng)的幾個(gè)參數(shù)優(yōu)化設(shè)計(jì)[J];計(jì)算機(jī)工程與應(yīng)用;2003年31期

5 駱宗陽(yáng),董瑋文,楊宇航,王澄;一種具有高可用性的通用負(fù)載均衡技術(shù)[J];計(jì)算機(jī)工程;2003年02期

6 張小芳,胡正國(guó),鄭繼川,唐焱;高可用性集群技術(shù)的研究和應(yīng)用[J];計(jì)算機(jī)工程;2003年04期

7 金亮,陳志剛,張松;一種基于內(nèi)容的可擴(kuò)展性透明Web Cluster體系結(jié)構(gòu)的設(shè)計(jì)[J];計(jì)算機(jī)工程;2004年07期

8 林闖;Web服務(wù)器集群請(qǐng)求分配和選擇的性能分析[J];計(jì)算機(jī)學(xué)報(bào);2000年05期

9 顧誠(chéng),羅建;一種Web服務(wù)器集群的可伸縮管理算法[J];計(jì)算機(jī)應(yīng)用;2003年07期

10 金雷,謝立;應(yīng)用系統(tǒng)中集群技術(shù)的實(shí)現(xiàn)[J];計(jì)算機(jī)應(yīng)用研究;2003年01期

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本文編號(hào)：2201768