软件工程毕业论文-大型网站技术架构的演化——以视频网站为例.doc

大型网站技术架构的演化 PAGE PAGE II 大型网站技术架构的演化 PAGE PAGE I 大型网站技术架构的演化——以视频网站为例 摘 要 现在，随着信息时代的到来，互联网的飞速发展，互联网在内容的传输发生了巨大的变化，早期的互联网以静态，公共信息的文本为主要内容，而目前的互联网传输则是大量的动态信息。同时，随着网络的普及，人们进入了网络生活，网络流量逐年增多，业务范围逐年增加，在互联网市场，越来越频繁的购物疯抢。服务化，高并发，高流量，数据量大的网络新特性正在考验着当前的互联网。 论文详细论述并证明了在某一特定业务场景下由于不同技术架构所展现的网站系统的性能对比，层次结构以及功能上的优缺点，其中，业务场景均为模拟多用户同时访问某一视频源接口，本课题提供此接口获取视频源基本媒资信息，使用技术手段记录每个用户所有请求过程的相应时间，并在一定数量的并发访问下重复进行，最终通过分析各项数据（如：连接成功率Availability，平均响应时长Response time，实际最高并发数Concurrency等）来证明大型网站系统架构的技术革新对于互联网发展起到的至关重要的作用。 关键词：互联网；高并发；网站性能；架构； PAGE PAGE IV PAGE PAGE II Abstract Now, with the advent of the information age, the rapid development of the Internet, Internet content transmission tremendous changes have taken place in the early Internet with static text as the main content of public information, and the current transmission over the Internet is a lot of dynamic information. Meanwhile, with the popularity of the network, people get into the network life. Network traffic is increasing year by year, the scope of business increases every year, in the Internet market, more and more frequent shopping berserk. Service-oriented, high concurrency, high flow, large volumes of data network the new features are a test of the current Internet. This paper discussed in detail and proved in a particular business scenario for performance comparison of different technical architecture show website system, as well as the advantages and disadvantages functional hierarchy, in which business scenarios are simulated multiple users simultaneous access to a video source Interface, the subject of this interface provides basic media information source to obtain the video information, the use of technical means to record the time of each user corresponding process all requests, and repeated in a number of concurrent access, the final analysis of the data through (e.g. connection the success rate of Availability, long response time average response time, the actual maximum number of conc