Andrew S Richter

US Patent:

8200812, Jun 12, 2012

Filed:

Dec 31, 2009

Appl. No.:

12/651197

Inventors:

Paul Anderson - Amsterdam, NL
Wim De Pauw - Ossining NY, US
Rohit D. Kelapure - Research Triangle Park NC, US
Andrew H. Richter - Research Triangle Park NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/173
G06F 15/16

US Classification:

709224, 709233, 709235

Abstract:

Embodiments of the present invention address deficiencies of the art in respect to workload management of backend systems and provide a novel and non-obvious method, system and computer program product for limiting a request rate from a client based on a health state of a server system. In one embodiment of the invention, a computer-implemented method for limiting a request rate from a client based on a health state of a server system that includes monitoring a server system, determining a measure of health of the server system, sending the determined measure of health to a client submitting a request to the server system and receiving a subsequent request from the client that is delayed by a time period, wherein the time period is based at least in part upon the determined measure of health. The computer-implemented method can further include receiving server system CPU utilization, determining an approximate predicted real server response time of a transaction and sending the determined approximate predicted real server response time of a transaction to a client submitting a request to the server system.