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:
Feb. 19, 2013
Filed:
Mar. 22, 2011
Sohel R. Ahuja, Bellevue, WA (US);
Jason G. Mchugh, Seattle, WA (US);
Sohel R. Ahuja, Bellevue, WA (US);
Jason G. McHugh, Seattle, WA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
A computer system that provides services to clients may be configured to adaptively throttle incoming service requests. It may modify throttle parameters to aggressively increase throttling in response to detecting that the system is in an overloaded state. For example, a throttle multiplier value may be increased by a large amount in an attempt to quickly exit the overloaded state. The throttle multiplier value may be increased multiple times before the system exits the overloaded state. The percentage of incoming requests that are throttled and/or the particular requests that are throttled may be dependent on the throttle multiplier value and/or on a request priority rank. Some time after the system returns to a non-overloaded state, the system may gradually reduce throttling by iteratively decreasing the throttle multiplier value until it is zero. Gradually reducing throttling may allow the system to avoid oscillating between an overloaded state and a non-overloaded state.