Design and Implementation of a User-Centered Content Distribution Network
نویسندگان
چکیده
Replicating Web documents at a worldwide scale can help reduce user-perceived latency and wide-area network traffic. This paper presents the design and implementation of Globule, a platform that allows Web server administrators to organize a decentralized replication service by trading Web hosting resources with each other. Globule automates all aspects of such replication: document replication, selection of the most appropriate replication strategies on a per-document basis, consistency management and transparent redirection of clients to replicas. To facilitate the transition from a non-replicated server to a replicated one, we designed Globule as a module for the Apache Web server. Therefore, converting Web documents should require no more than compiling a new module into Apache and editing a configuration file.
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