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第二十一世纪的网络基础设施

Web infrastructure for the 21st Century
课程网址: http://videolectures.net/www09_rodriguez_wi/  
主讲教师: Pablo Rodriguez
开课单位: 巴塞罗那Telefonica研发中心
开课时间: 2009-05-20
课程语种: 英语
中文简介:
网络领导信息技术革命的成功依赖于庞大的计算基础设施。近年来,无论是云计算还是社交网络,都给此类基础设施带来了更大的负担。云计算范式正在使计算从基于PC的应用程序向基于云的应用程序发生巨大转变。云计算使用户不必记住数据所在的位置,允许用户随时随地访问信息,并通过基本上无限的在线计算提供快速服务。另一方面,社交网络出现了网络的社会方面,在那里,社会互动对网络应用程序提出了需求,进而对网络基础设施提出了进一步的需求。互联网主要是为人与计算机之间的交互应用而开发的,它一直在努力处理围绕内容设计的Web的必要性。例如,当Web内容从一个地方移动到另一个地方时,Web指针被破坏,搜索排名算法也被破坏。同样,内容通常不在你需要的时候应该在的地方,路由器浪费了数百万次复制相同内容的能力。因此,我们看到了从一开始就没有计划的互联网系统的出现,例如Web缓存、内容分发网络或P2P网络。在本文中,我将讨论网络在当今互联网基础设施中所面临的挑战,并讨论各种解决方案来应对这些挑战。特别是,我将讨论如何重新考虑Internet在内容/信息层进行联网,以及指导新Web基础设施服务的高效工程所需的基础架构系统设计原则。
课程简介: The Web success in leading the information technology revolution has relied on an enormous computing infrastructure. In recent years, both cloud computing as well as social networks are putting even more burden in such infrastructure. The cloud computing paradigm is creating a massive shift in computing – from PC-based applications to cloud-based applications. Cloud computing frees users from having to remember where the data resides, gives users access to information anywhere, and provides fast services through essentially infinite online computing. Social networks, on the other hand, emerge the social aspects of the Web where the social interactions put demands on Web applications, and in turn further demands in the Web's infrastructure. The Internet, which was mostly developed for interactive applications between humans and computers, has struggled to handle the necessities of a Web designed around content. For instance, as Web content moves from one place to another, Web pointers are broken and so do search ranking algorithms. Similarly, content is often not where it should be when you need it and routers waste capacity copying the same content millions of times. As a result, we have seen the emergence of Internet systems that were not planned for from the beginning, e.g. Web Caching, Content Distribution Networks, or P2P networks. In this talk I will discuss the challenges that the Web is posing in today's Internet infrastructure, and argue about various solutions to cope with them. In particular, I will argue how to re-think the Internet to do networking at the content/information layer, and the underlying architectural system design principles needed to guide the efficient engineering of new Web infrastructure services.
关 键 词: 计算机科学; 社交网络; 网络缓存
课程来源: 视频讲座网
最后编审: 2020-06-05:zyk
阅读次数: 36