结构化对等网络中面向信誉机制的资源共享平台

针对目前因特网上提高空闲网络资源利用率的需求，提出并描述了结构化对等网络中一种面向信誉机制的资源共享平台NRSP。NRSP系统可以把因特网上用户提交的各种作业高效地映射到平台中合适的网络资源上运行，充分共享空闲处理器的周期。该系统具有非集中性、可移植性、统计性与公平性的优点，使用分布式哈希表的Pastry网络来组织节点。同时提出一种新型的分布式信誉机制，支持资源的消费者与提供者之间交换信誉信息，完成信誉信息的统计。最后实现了NRSP的原型系统，通过对各种作业场景下的应用进行测试，性能分析表明NRSP采用公平的信誉机制可以更快、更多地共享其他节点的处理器周期。

Credit mechanism oriented resource sharing platform in structured P2P networks

Confronted with the high usability rate requirements of available network resources, a credit mechanism oriented resource sharing platform in structured P2P networks called NRSP was proposed and described. NRSP allowed users to submit jobs to be run in the system and to run jobs submitted by other users on any resources available over the Internet, sharing the available processor cycle efficiently. NRSP is a decentralized, portable, accountable and fair system. A Pastry protocol was provided for efficient and fault-tolerant content addressable routing in a self-organizing overlay network, and a new distributed credit system supporting accountability among providers and consumers of resources was also used in the system fairly. A prototype of NRSP was implemented subsequently. The simulation results show that the fairness mechanisms work well to punish cheating nodes and NRSP is a feasible approach to large scale resource sharing over the Internet.