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:
Dec. 18, 2012
Filed:
Oct. 06, 2008
Abolade Gbadegesin, Seattle, WA (US);
Viraj B. Mody, Redmond, WA (US);
David C. Steere, Bellevue, WA (US);
William Michael Zintel, Redmond, WA (US);
Bruce W. Copeland, Redmond, WA (US);
Atul Adya, Redmond, WA (US);
Thomas W. Kleinpeter, Redmond, WA (US);
Abolade Gbadegesin, Seattle, WA (US);
Viraj B. Mody, Redmond, WA (US);
David C. Steere, Bellevue, WA (US);
William Michael Zintel, Redmond, WA (US);
Bruce W. Copeland, Redmond, WA (US);
Atul Adya, Redmond, WA (US);
Thomas W. Kleinpeter, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Clients may subscribe to resources for the purpose of receiving notifications of changes in the resource (e.g., a file is added to a shared folder). Storing subscriptions within persistent storage provides data security in the event of a service failure, at the cost of high latency in accessing subscription data. An efficient method for tracking a resource is provided herein. A subscription service creates subscriptions and monitors resources for a client. Upon a subscribed resource change, a notification service stores a notification of the change into a queue associated with the client. Efficient resource tracking is achieved because notification and subscription data is stored in low latency soft memory. The notification service is configured to detect a failure in the notification service and/or subscription service. In the event a service fails, the client provides a recovery mechanism by resubscribing to resources the client is interested in.