TerraDir: Scalable, Configurable Distributed Directories for the Internet

新一代复杂的、多方分布式应用程序正在因特网上提出和实现。 这些应用中的许多应用，例如分布式的电子邮件订阅服务、无处不在的文件系统和分布式拍卖，需要对分散在整个网络中的大量资源进行定位和协调。 这些应用程序的基本构建块是分布式目录。 分布式目录使应用程序能够及时有效地找到所需的资源，并帮助应用程序scale.The建议描述TerraDir;一组协议，用于实现可定制的，分布式的，对等目录，通过它可以实现一系列广域资源发现应用程序。 该架构解决了可扩展性和灵活性问题。 研究将集中在：-动态视图实现（从位置解耦命名）-可配置性（应用程序不是单一的，必须满足广泛的需求）-缓存（多个缓存位置）-容错（成功所需），以及-网络层技术，用于查找对等点和分发应用程序。每个TerraDir目录是一个私有命名空间，多个TerraDir可以同时活动，以提供其他虚拟控制器。 由于TerraDir设计用于在现有的互联网上实现，因此这些协议满足了端到端的要求，不需要任何特殊的网络支持。

A new generation of sophisticated, multi-party distributed applications are being proposed and implemented over the Internet. Many of these applications, such as distributed publish-subscribe services, ubiquitous files system and distributed auctions, require the location and coordination of a large number of resources dispersed throughout the network. A fundamental building block for these applications, is a distributed directory. The distributed directory enables applications to locate required resources in a timely and efficient manner, and helps the application to scale.The proposal describes TerraDir; a set of protocols for implementing customizable, distributed, peer-to-peer directories over which a range of wide-area resource discovery applications can be implemented. The architecture addresses scalability and flexibility. The research will concentrate on:- dynamic view implementation (decoupling naming from location)- configurability (applications are not monolithic, must address wide needs)- caching (multiple locations of caches)- fault tolerance (required for success), and- network layer techniques for finding peers and distributing applications.Each TerraDir Directory is a private namespace, and multiple TerraDirs can be active at the same time to provide other virtual directors. Since the TerraDir is designed to be implemented over the existing Internet, the protocols address end-to-end requirements and do not require any special network support.