๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Replica-aware caching for Web proxies

โœ Scribed by Hyokyung Bahn; Hyunsook Lee; Sam H. Noh; Sang Lyul Min; Kern Koh

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
297 KB
Volume
25
Category
Article
ISSN
0140-3664

No coin nor oath required. For personal study only.

โœฆ Synopsis

A signiยฎcant percentage of Web objects are replicas. For example, a vast majority of image ยฎles such as banners, buttons, and logos are duplicated throughout the WWW. Nevertheless, Web caching systems generally treat the replicas as different objects because they have different URLs. In this paper, we propose a simple and efยฎcient way to manage the replicated objects for Web proxy caches. In the proposed scheme, the MD5 checksum, together with the size of an object, forms an identiยฎer of a Web object that can distinguish replicas. Experimental results show that the proposed scheme signiยฎcantly improves the cache hit rate and the byte hit rate by removing the redundant objects from the cache and reยฏecting the popularity of objects more precisely.

๐Ÿ“œ SIMILAR VOLUMES

Utility of co-operating Web proxy caches
Utility of co-operating Web proxy caches
โœ P. Krishnan; Binay Sugla ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 967 KB

In this paper. we study the utility of co-operation among intranet proxy caches. We target our study to a corporate intranet environment having multiple Web proxies that each serve a set of hosts. Experiments with our co-operation methods and architectures with real data suggest that daily hit rate

Caching for Web Searching
Caching for Web Searching
โœ Kalyanasundaram; Noga; Pruhs; Woeginger ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Springer ๐ŸŒ English โš– 156 KB
Piggyback server invalidation for proxy
Piggyback server invalidation for proxy cache coherency
โœ Balachander Krishnamurthy; Craig E. Wills ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 899 KB

We present a piggyback server invalidation (PSI) mechanism for maintaining stronger cache coherency in Web proxy caches while reducing overall costs. The basic idea is for servers to piggyback on a reply to a proxy client, the list of resources that have changed since the last access by the client.