Availability in clustered application servers
US6711606B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1999 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jun 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method of increasing the availability of an application executed by a computer system. More particularly, the invention relates to a method of increasing the availability of an application executed by one or more application clients and a multitude of application servers executing the same application. The fundamental teaching comprises a multi-casting step wherein an application client is requesting execution of an application service by sending an identical application service request to a collection of N out of M application servers with 1<N≦M in parallel. Within an application server, preceding the application service execution step, an “only-once” determination step is suggested, for determining whether an application service request must not be executed more than once without jeopardizing application consistency. For such a case the taught method provides “only-once” execution behavior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.