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BT(Bit Torrent)是目前广泛流行的下载工具,它使用了结构化对等网络的技术,实现了“人人为我,我为人人”的节点平等、相互共享资源的网络体系,较好地利用了网络中所有节点的存储、计算资源,提高了网络中数据传输、检索的效率。本文从BT入手,依次从缓冲陈列路由协议、一致性哈希、chord协议等几个方面介绍DHT算法的实现原理及其cfs、past、oceanstore之中的应用。
BT (Bit Torrent) is a widely used download tool. It uses the technology of structured peer-to-peer network to realize the network system of equality and mutual sharing of resources for “Everyone, Everyone” nodes, It makes good use of the storage and computing resources of all nodes in the network and improves the efficiency of data transmission and retrieval in the network. This article starts with BT, introduces the implementation principle of DHT algorithm and its application in cfs, past, oceanstore from the aspects of buffer display routing protocol, consistent hash, chord protocol and so on.