Web servers with queryable dynamic caches

Details Web servers with queryable dynamic caches Web servers with queryable dynamic caches

G - Physics

06

F

G06F 17/30 (2006.01)

Patent

CA 2369891

A middle-tier Web server with a queryable cache (219) that contains items from one or more data sources. Items are included in the cache on the basis of the probability of future hits on the items. The probability determination may be made by an element located in the Web server (237), at the data source, or elsewhere in the network to which the Web server and the data source belong. The determination may be made by analyzing the hit rates on items or by means of information such as a period of time during which frequent hits can be expected. When the data source determines that an item that has been included in the cache has changed, it sends an update message to the server (237), which updates the item if it is still included in the cache.

Cette invention concerne un serveur web intermédiaire à mémoire cache (219) interrogeable qui contient des éléments issus d'une ou de plusieurs sources de données. Ces éléments sont compris dans la mémoire cache, ce stockage étant fondé sur la probabilité d'une demande future relative à ces éléments. La détermination peut être faite par analyse de la cadence des demandes relatives à ces éléments ou par des moyens d'information tels qu'une période durant laquelle on peut s'attendre à de fréquentes demandes. Lorsque la source de donnée détermine qu'un élément qui a été inclus dans la mémoire cache a changé, elle envoie un message de mise à jour au serveur (237), qui met à jour l'élément s'il est toujours inclus dans la mémoire cache.

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