本文選題：內(nèi)容分發(fā)網(wǎng)絡(luò)　切入點：全局服務(wù)器負載均衡　出處：《華南理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：21世紀互聯(lián)網(wǎng)迅速發(fā)展普及，人們通過上網(wǎng)獲取信息，與朋友通信交流，觀看電影等�；ヂ�(lián)網(wǎng)極大地提高了人們的工作效率，豐富了人們的精神生活。與此同時，，隨著使用互聯(lián)網(wǎng)的人越來越多，互聯(lián)網(wǎng)的內(nèi)容也以幾何增長方式迅速膨脹，互聯(lián)網(wǎng)變得越來越擁擠。由于缺乏必要的流量管理和疏通手段，骨干帶寬被迅速消耗掉，IP網(wǎng)絡(luò)流量秩序瀕于失衡�；谶@個問題，互聯(lián)網(wǎng)提出一種叫做CDN的解決方案，CDN的全稱是ContentDeliveryNetwork，即內(nèi)容分發(fā)網(wǎng)絡(luò)。其目的是通過在現(xiàn)有的Internet中增加一層新的網(wǎng)絡(luò)架構(gòu)，將網(wǎng)站的內(nèi)容發(fā)布到最接近用戶的網(wǎng)絡(luò)"邊緣"，使用戶可以就近取得所需的內(nèi)容，解決Internet網(wǎng)絡(luò)擁擠的狀況，提高用戶訪問網(wǎng)站的響應(yīng)速度。從技術(shù)上全面解決由于網(wǎng)絡(luò)帶寬小、用戶訪問量大、網(wǎng)點分布不均等原因所造成的用戶訪問網(wǎng)站響應(yīng)速度慢的問題。隨著CDN技術(shù)的不斷發(fā)展，現(xiàn)在的CDN解決方案已經(jīng)不在滿足于簡單的通過增加邊緣服務(wù)來提升用戶體驗，而是需要一套智能的，實時感應(yīng)用戶服務(wù)質(zhì)量和實時網(wǎng)絡(luò)質(zhì)量的系統(tǒng)。通過獲取到實時的網(wǎng)絡(luò)情況，分析用戶訪問的最佳鏈路，為用戶提供最好的節(jié)點服務(wù)，從而提升用戶的訪問質(zhì)量。 本文選擇“內(nèi)容分發(fā)網(wǎng)絡(luò)調(diào)度系統(tǒng)的研究與實現(xiàn)”作為研究課題，通過研究內(nèi)容分發(fā)系統(tǒng)的調(diào)度策略，通過基于IP歸屬地區(qū)和運營商的分析和內(nèi)容分發(fā)系統(tǒng)各個節(jié)點的實時帶寬IO統(tǒng)計，綜合分析從而實現(xiàn)內(nèi)容分發(fā)網(wǎng)絡(luò)智能調(diào)度。本系統(tǒng)研究和實現(xiàn)的關(guān)鍵點在于，如何能夠智能地進行網(wǎng)絡(luò)流量調(diào)度和節(jié)點間的負載均衡調(diào)度。最后設(shè)計實現(xiàn)CDN全局負載均衡調(diào)度系統(tǒng)，實現(xiàn)網(wǎng)站節(jié)點間的智能調(diào)度，提升用戶的訪問資源下載速度，提高用戶的訪問體驗。另外也保障各服務(wù)節(jié)點的負載均衡，從而使服務(wù)資源能夠充分利用，提高效率。
[Abstract]:In 21th century, the Internet was rapidly developed and popularized. People get information through the Internet, communicate with friends, watch movies, etc. The Internet has greatly improved people's working efficiency and enriched people's spiritual life. At the same time, As more and more people use the Internet, the content of the Internet expands rapidly in a geometric way, and the Internet becomes more and more crowded. Due to the lack of necessary traffic management and dredging means, Backbone bandwidth is rapidly consumed and IP network traffic order is on the verge of imbalance. The Internet proposes a solution called CDN, the full name of which is content delivery Network, which aims to add a new layer of network architecture to the existing Internet. By publishing the content of the website to the "edge" of the network closest to the user, the user can obtain the required content in the vicinity, solve the congested condition of the Internet network, and improve the response speed of the user to visit the website. The problem of slow response of users to visit websites caused by the large number of users and uneven distribution of sites. With the development of CDN technology, Today's CDN solution is no longer satisfied with simply enhancing the user experience by adding edge services, but requires an intelligent set of solutions. The system of real-time sensing user quality of service and real-time network quality. By obtaining the real-time network situation, analyzing the best link accessed by the user, providing the best node service for the user, thus improving the user's access quality. In this paper, "the Research and implementation of content Distribution Network scheduling system" is selected as the research topic, and the scheduling strategy of the content Distribution system is studied. Through the analysis based on IP ownership area and operator and the real-time bandwidth IO statistics of each node in the content distribution system, the intelligent scheduling of content distribution network is realized by comprehensive analysis. The key point of this system research and implementation lies in, How to intelligently schedule network traffic and load balancing between nodes. Finally, the CDN global load balancing scheduling system is designed and implemented. In addition, it also ensures the load balance of each service node, so that the service resources can be fully utilized and the efficiency can be improved.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.02

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