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Query Caching Method for Distributed Web Caching
Takuya ASAKA Hiroyoshi MIWA
IEICE TRANSACTIONS on Communications
Publication Date: 1998/10/25
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Communication Networks and Services
WWW, cache, query message, query relationship digraph,
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Distributed web caching reduces retrieval latency of World Wide Web (WWW) objects such as text and graphics. Conventional distributed web caching methods, however, require many query messages among cache servers, which limits their scalability and reliability. To overcome these problems, we propose a query caching method in which each cache server caches not only WWW objects but also a query history. This method of finding cached objects can reduce the number of query messages among cache servers, making it possible to construct a large-scale distributed web cache server. We also propose an algorithm for constructing efficient query relationships among cache servers.