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. 02, 2017
Filed:
Jun. 27, 2013
Markus Gebhard, Walldorf, DE;
Andreas Jahr, Walldorf, DE;
Wolfgang Degenhardt, Walldorf, DE;
Volker Driesen, Heidelberg, DE;
Nicolai Jordt, Bad Langbrücken, DE;
Oleg Koutyrine, Walldorf, DE;
Markus Gebhard, Walldorf, DE;
Andreas Jahr, Walldorf, DE;
Wolfgang Degenhardt, Walldorf, DE;
Volker Driesen, Heidelberg, DE;
Nicolai Jordt, Bad Langbrücken, DE;
Oleg Koutyrine, Walldorf, DE;
SAP SE, Walldorf, DE;
Abstract
An upgrade procedure for an application system without downtime is presented. The upgrade procedure includes a mix of a rolling upgrade of application servers, shadow systems, and record and replay mechanisms that employ transformation and locking, for the upgrade of the applications on the application system. Application servers are upgraded one after another. A target version of the system is simultaneously added to the original system and a shadow, or target, system. Data changes are not only carried out in the original system, but are also carried out in the target system, so that a customer realizes no downtime for their data requests to the applications.