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. 15, 2016
Filed:
Jun. 30, 2014
Emc Corporation, Hopkinton, MA (US);
Shashwat Srivastav, Seattle, WA (US);
Sriram Sankaran, Redmond, WA (US);
Subba Gaddamadugu, Worcester, MA (US);
Peter Musial, Arlington, MA (US);
Andrew Robertson, Washington, DC (US);
Huapeng Yuan, Seattle, WA (US);
Qi Zhang, Redmond, WA (US);
Jun Luo, Bellevue, WA (US);
Vishrut Shah, Redmond, WA (US);
Chen Wang, Shanghai, CN;
EMC IP Holding Company, LLC, Hopkinton, MA (US);
Abstract
A computer implemented method, system, and computer program product for enabling consistency between zones comprising creating a lease agreement between a first zone and at least a second zone; wherein the lease indicates that the first zone is the owner of an object; wherein the lease agreement dictates that a notification is to be sent before a cached object in the first zone is updated if the lease is still valid; wherein the lease indicates the first zone is to send a heartbeat to the second zone within the predetermined period of time if the object has not been changed and the lease is still valid; and setting up heartbeats from the first zone to at least a second zone within a predetermined amount of time; wherein the heartbeat indicates that the lease is still valid and the object has not been changed.