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Cache Management for WEB Sites with High Volume/Volatile Contents

IP.com Disclosure Number: IPCOM000015374D
Original Publication Date: 2002-Jan-27
Included in the Prior Art Database: 2003-Jun-20

Publishing Venue

IBM

Abstract

Disclosed is an application for managing very dynamic cache for a WEB site that have to publish the more recent information available in the system with a response time lower than 2 seconds for at least 90% of the requests. The cache should be shared among all the Web servers of the site in order to provide a consistent view of the system and to optimise the available resources. This application was designed for The Olympic Intranet that had to manage a big amount of information with data that was changing very often (data were consolidated in different HTML pages) and with a very strong requirement for response times. Standard WEB Server cache procedures were not able to accomplish these requirements, and therefore a new cache management procedure was defined. The cache was implemented by an AIX file system with the HTML pages stored in files. The different states of a page were coded in its file modes. Pages in the cache could have the following states: valid: page ready to be served