Patent · US Active

Zero downtime mechanism for software upgrade of a distributed computer system

US9229707B2 · kind B2 · utility

69Cited by

5References

17Claims

0Family size

Assignee

SAP SE · DE

Inventors

Lazar Borissov · Sofia, BG
Thomas Brodkorb · Wiesloch, DE
Volker Driesen · Heidelberg, DE
Anton Georgiev · Montana, BG
Ivan Mihalev · Sofia, BG
Dencho Mitev · Sofia, BG

Key dates

Filing date	Dec 18, 2008
Grant date	Jan 5, 2016
Priority date	—
Expiry date	Feb 11, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F8/658
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In a distributed computer system with cluster architecture, a number of service requests are redirected from a first instance of the cluster to a second instance of the cluster for execution. A software patch is applied to one or more software components running on an application server node of the first instance of the cluster. A number of service requests are redirected from the second instance of the cluster to the first instance of the cluster for execution. The software patch is applied on the one or more software components running on an application server node of the second instance of the cluster. A number of new service requests are directed to the upgraded second instance of the cluster for processing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.