Description: Kademlia协议(以下简称Kad)是美国纽约大学的PetarP. Maymounkov和David Mazieres.
在2002年发布的一项研究结果《Kademlia: A peerto -peer information system based on
the XOR metric》。
简单的说,Kad 是一种分布式哈希表(DHT)技术,不过和其他DHT 实现技术比较,如
Chord、CAN、Pastry 等,Kad 通过独特的以异或算法(XOR)为距离度量基础,建立了一种
全新的DHT拓扑结构,相比于其他算法,大大提高了路由查询速度。
在2005 年5 月著名的BiTtorrent 在4.1.0 版实现基于Kademlia 协议的DHT 技术后,
很快国内的BitComet 和BitSpirit 也实现了和BitTorrent 兼容的DHT 技术,实现
trackerless下载方式。
另外,emule 中也很早就实现了基于Kademlia类似的技术(BT中叫DHT,emule中也叫
Kad,注意和本文简称的Kad 区别),和BT 软件使用的Kad 技术的区别在于key、value 和
node ID 的计算方法不同。-We describe a peer-to-peer system which has provable
consistency and performance in a fault-prone
environment. Our system routes queries and locates
nodes using a novel XOR-based metric topology that
simplifies the algorithm and facilitates our proof.
The topology has the property that every message
exchanged conveys or reinforces useful contact information.
The system exploits this information to
send parallel, asynchronous query messages that tolerate
node failures without imposing timeout delays
on users. Platform: |
Size: 509952 |
Author:libing |
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Description: BT全名为BitTorrent,是一个p2p软件,你在下载download的同时,也在为其他用户提供上传upload,因为大家是“互相帮助”,所以不会随着用户数的增加而降低下载速度。-BT full name is BitTorrent, a p2p software, you download the download, it is also for other users upload upload, because we are " mutual help" , so will not end with the increase in the number of users to reduce download speed. Platform: |
Size: 32768 |
Author:仓木小子 |
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Description: BT源码及详细解析,是熟悉python和P2P的同学好好学习的资料。-BT source code and detailed analysis, is familiar with python and P2P students learn information. Platform: |
Size: 1305600 |
Author:王郑东 |
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Description: 快来看BitTorrent的源码,本代码利用BT下载软件的基本原理,是学习P2P软件的好助手-
-Come BitTorrent source code, the code BT download software using the basic principles of P2P software to learn good assistant- Platform: |
Size: 245760 |
Author:zsyh |
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Description: 一篇很好的文章,对bittorrent协议分析与实现进行了讲解,对初学P2P的开发人员了解协议的内容,有很好的帮助。-A good article on the bittorrent protocol were explained for beginner developers understand the P2P content of the agreement, there is a good help. Platform: |
Size: 342016 |
Author: |
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