Complimenting Internet Caching With Pseudo-Serving to Mitigate Network Congestion

在快速拥挤的情况下，由于大量用户希望在短时间内从服务器中检索文件而导致服务器附近出现拥塞，用户处于独特的位置，可以通过共享检索到的文件而彼此受益匪浅。伪服务是互联网接入的一种新模式，它通过超级服务器订立的合同，鼓励用户为服务器文件的快速传播作出贡献。根据这一合同，超级服务器赠款用户一个转介，在那里可以检索所请求的文件的副本，以换取她的保证，为其他用户服务一段指定的时间。在这个拟议的项目中，我们将调查必须解决的问题，以使伪服务的有效工具，驱散互联网上的闪光人群。这包括与合同对用户的可接受性有关的问题，超级服务器设置合同的能力，该合同考虑请求源的物理分布，安全问题和处理合同违约的各种方法，以及将伪服务集成到各种缓存策略中的策略。这项研究的结果将有助于万维网更优雅地扩展，并提供一种机制，通过这种机制，用户可以交换他们的本地资源，以优先访问忙碌服务器上的信息。

Under flash-crowd conditions, where congestion arises near the server because a large number of users wish to retrieve files from it over a short period of time, users are in a unique position to benefit enormously from each other by sharing retrieved files. Pseudo-serving, a new paradigm for Internet access, provides incentives for users to contribute to the speedy dissemination of server files through a contract set by a super-server. Under this contract, the super-server grants a user a referral to where a copy of the requested file may be retrieved in exchange for her assurance to serve other users for a specified period of time. In this proposed project, we will investigate issues that must be resolved in order to make pseudo-serving an effective tool for dissipating flash-crowds on the Internet. This includes issues related to the acceptability of the contract to the user, the ability of the super-server to set contracts that account for the physical distribution of sources of the requests, security issues and various approaches in dealing with contract breaches, and strategies for integrating pseudo-serving into various caching policies. The outcome of this research will help the World Wide Web to scale more gracefully and provide a mechanism through which users can barter their local resources for preferential access to information from busy servers.