Patent · US Active

Failover protection from a failed worker node in a shared memory system

US8140678B2 · kind B2 · utility

3Cited by

21References

35Claims

0Family size

Assignee

SAP AG · DE

Inventors

Christian Fleischer · Mannheim, DE
Galin Galchev · Sofia, BG
Frank Kilian · Mannheim, DE
Oliver Luik · Reilingen, DE
Georgi Stanev · Sofia, BG

Key dates

Filing date	Dec 28, 2004
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Apr 7, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/505
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method is described that involves entering a notification of a request into a queue that supplies request notifications to a first worker node amongst a plurality of worker nodes. The first worker node is targeted to process the request. In response to the first worker node failing before the notification could be serviced from the first queue, the notification is moved from the first queue to a second queue that supplies request notifications to a second worker node amongst the plurality of worker nodes. After servicing the notification from the second queue, the request is transferred to the second worker node. A response to the request is then generated with the second worker node.

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