NDLI: Replicated documents for the world-wide web

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Replicated documents for the world-wide web

Content Provider	Semantic Scholar
Author	Pagnia, Henning Theel, Oliver E. Iwik
Copyright Year	1997
Abstract	The number of users of the WorldWide Web (WWW) increases on a daily basis, thereby consuming more and more of the Internet's restricted resources. A large fraction of the workload consists in retrieving WWW documents on remote servers. Since WWW documents are generally infrequently updated but extremely often retrieved, providing multiple copies of these documents is the almost natural way to cope with the resource problem. By installing copies nearby points of frequent use, precious band-width can be saved. Furthermore, the load associated with the retrieval of \hot-spot" documents can be shared among multiple servers. Additionally, document retrieval and document update can be ooered with high availability due to an inherent tolerance against site and communication failures. However, the correctness of the multiple copies must be guaranteed. A broad spectrum of protocols which enforce a certain notion of correctness have been developed which address this problem. In this paper, we describe the architecture and functionality of a running prototype implementation which allows WWW document replication in a general and eecient manner. Our approach ooers transparent, highly eecient retrieval from the WWW user's point of view and does not alter possibly licensed code of HTTP clients.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.informatik.th-darmstadt.de/BS/Theel/Publications/webtec98.ps.gz
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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