Migrating connection flows

Patent metadata

Field	Value
Publication number	US-9232002-B1
Application number	US-201113337945-A
Country	US
Kind code	B1
Filing date	Dec 27, 2011
Priority date	Dec 27, 2011
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

In a cluster network, an ingress component can serve as an entry point for incoming request traffic and route requests to a plurality of backend servers for processing. Each of the backend servers can handle multiple flows (e.g., TCP) established with the ingress component. When a backend server is detected to have been overloaded with requests, a different peer server is selected on the network to take over processing of the requests from the overloaded server. A set of state information for at least one connection is then transferred from the overloaded server to the selected peer server. Thereafter, the ingress component can update its routing information to begin routing new incoming requests or packets for that connection to the new peer server. The state information can be transferred upon reaching a logical boundary between requests, or within a request, received on the connection.

First claim

What is claimed is:

1. A computer-implemented method for moving connections from a computing device, said method comprising:
establishing a plurality of transmission control protocol (TCP) connections between an ingress component and a plurality of backend servers;
receiving, by said ingress component, a plurality of requests from a client and forwarding the requests from the ingress component to the plurality of backend servers over the plurality of TCP connections;
detecting…

Assignees

• Sorenson Iii James Christopher
• Amazon Tech Inc

Inventors

• Sorenson Iii James Christopher

Classifications

• H04L69/40

  Electricity · mapped topic

• H04L67/1034 Primary

  Electricity · mapped topic