CoralCDN,在线网站加速访问工具，www.coralcdn.org网络节点基本上都在国外另外
Coral CDN全称为The Coral Content Distribution Network,那么CDN究竟是什么?它是如何运作的呢?CDN又能为我们解决什么呢?面对这一系列的问题
举个例子来说当用户访问已经使用了CDN服务的网站时
通过用户定位算法和服务器健康检测算法综合后的数据由于大量的用户访问都由分布在网络边缘的CDN节点服务器直接响应了
CoralCDN is a free and open content distribution network based around peer-to-peer technologies, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high performance and meets huge demand, all for the price of a $50/month cable modem.
Publishing through CoralCDN is as simple as appending a short string to the hostname of objects URLs; a peer-to-peer DNS layer transparently redirects browsers to participating caching proxies, which in turn cooperate to minimize load on the source web server. CoralCDN proxies automatically replicate content as a side effect of users accessing it, improving its availability. Using modern peer-to-peer indexing techniques, CoralCDN will efficiently find a cached object if it exists anywherein the network, requiring that it use the origin server only to initially fetch the object once.
One of CoralCDNs key goals is to avoid ever creating hot spots in its infrastructure. It achieves this through a novel indexing abstraction we introduce called a distributed sloppy hash table (DSHT), and it creates self-organizing clusters of nodes that fetch information from each other to avoid communicating with more distant or heavily-loaded servers.CoralCDN
