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. 19, 2017
Filed:
Sep. 26, 2014
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Douglas A. Young, Mountain View, CA (US);
Ang Xu, Mountain View, CA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Techniques for switching mastership from one service in a first data center to a second (redundant) service in a second data center are provided. A service coordinator in the first data center is notified about the master switch. The service coordinator notifies each instance of the first service that the first service is not a master. Each instance responds with an acknowledgement. After it is confirmed that all instances of the first service have responded with an acknowledgement, a client coordinator in the first and/or second data center is updated to indicate that the second service is the master so that clients may send requests to the second service. Also, a service coordinator in the second data center is notified that the second service is the master. The service coordinator notifies each instance of the second service that the second service is the master. Each instance responds with an acknowledgement.