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:
Nov. 04, 2014
Filed:
Mar. 02, 2012
Erik J. Burckart, Raleigh, NC (US);
John P. Cammarata, Wake Forest, NC (US);
Andrew J. Ivory, Wake Forest, NC (US);
Aaron K. Shook, Raleigh, NC (US);
Erik J. Burckart, Raleigh, NC (US);
John P. Cammarata, Wake Forest, NC (US);
Andrew J. Ivory, Wake Forest, NC (US);
Aaron K. Shook, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for cache sharing among branch proxy servers. A branch proxy sever receives a request for accessing a resource at a data center. The branch proxy server creates a cache entry in its cache to store the requested resource if the branch proxy server does not store the requested resource. Upon creating the cache entry, the branch proxy server sends the cache entry to a master proxy server at the data center to transfer ownership of the cache entry if the master proxy server did not store the resource in its cache. When the resource becomes invalid or expired, the master proxy server informs the appropriate branch proxy servers storing the resource to purge the cache entry containing this resource. In this manner, the master proxy server ensures that the cached resource is synchronized across the branch proxy servers storing this resource.