Load balancing of server clusters
US7991912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Mar 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1023
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A load balancing scheme is described for a server cluster. An application identifier is received by the cluster from a client desiring to connect to the application. Each one of the servers in the cluster independently hashes the application identifier into a unique number. This unique number is used to determine a preferred one of the servers for the connection. The servers then each calculate a priority code using the unique number, a load level for each server, and/or a node identifier assigned to the servers in the cluster. If the preferred cluster server is available, it transmits its priority code to the client before the other servers transmit their priority codes. Otherwise, each of the available cluster servers transmits their priority codes to the client. The client selects the cluster server with the most favorable priority for making the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.