Caching, clustering and aggregating UseNet server

摘要

A cluster of data caching servers that provide UseNet service to customers. The cluster of data caching servers cache articles and data requested by customers after retrieving the articles and data from a backend server/server farm. The cluster of data caching servers are adapted to share their cache memories with the other clustered servers in the cluster such that, if an article is requested by a client and the article has already been stored in one of the clustered server's cache memories, there is no requirement to retrieve all the requested article from the backend server.