期刊名称:International Journal of Computer Science and Information Technologies
电子版ISSN:0975-9646
出版年度:2011
卷号:2
期号:3
页码:1022-1025
出版社:TechScience Publications
摘要:A peer-to-peer, commonly abbreviated to P2P, is any distributed network architecture composed of participants that make a portion of their resources (such as processing power, disk storage or network bandwidth) directly available to other network participants, without the need for central coordination instances (such as servers or stable hosts). Peers are both suppliers and consumers of resources, in contrast to the traditional client–server model where only servers supply, and clients consume. Peer-to-peer was popularized by file sharing systems like Napster During the last few years the distributed hash table (DHT) has emerged as a flexible and general architecture that can support a large variety of applications including file sharing, storage systems, query processing, name services and communication services. A DHT manages a global identifier (ID) space that is partitioned among n nodes organized in an overlay network. To partition the space, each node is given a unique ID x and owns the set of IDS that are “closest” to x. Each object is given an ID and the DHT stores an object at the node which owns the object’s ID
关键词:Load balance; structured peer to peer system;distributed hash table.n.