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:
Jan. 16, 2018
Filed:
Apr. 16, 2013
Amazon Technologies, Inc., Reno, NV (US);
James Christopher Sorenson, III, Seattle, WA (US);
Douglas Stewart Laurence, Mercer Island, WA (US);
Neha Shetty, Seattle, WA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
A health check method for a distributed load balancer in which a router receives packets from at least one client and routes packet flows to multiple load balancer (LB) nodes, which in turn distribute the packet flows among multiple server nodes. Each LB node may be responsible for health checking one or more other LB nodes. In addition, each LB node may health check one or more of the server nodes. Heartbeat information for the nodes may be disseminated among the LB nodes according to a gossip protocol. The LB nodes may send LB node membership information to the server nodes. Failure of a node may be detected by the LB nodes according to the heartbeat information, and appropriate actions taken.