The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2003
Filed:
Nov. 17, 2000
James R. H. Challenger, Garrison, NY (US);
Paul M. Dantzig, Scarsdale, NY (US);
Daniel M. Dias, Mohegan Lake, NY (US);
Nagui Halim, Yorktown Heights, NY (US);
Arun K. Iyengar, Yorktown Heights, NY (US);
Richard P. King, Scarsdale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for caching objects using a cost-based publish and subscribe paradigm, wherein a server computing node determines whether a given cache node should receive a cache update based on, e.g., the cost of sending the update. In one aspect, a method for maintaining objects in a cache comprises the steps of issuing a subscription for an object, maintaining a metric for the object; and determining, based on the metric, whether a cache is to receive an update message associated with the object. The metric is preferably correlated with one or more factors such as an importance factor of maintaining the cached copy of the object current, the cost of the sending the update message, and/or the estimated lifetime of the object.