Fault tolerance solution for stateful applications
US9110864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fault tolerance method and system for VMs on a cluster identifies a client state for each client session for those applications. The method replicates the client session onto a primary and a backup VM, and uses a network controller and orchestrator to direct network traffic to the primary VM and to periodically replicate the state onto the backup VM. In case of a VM failure, the method reroutes network traffic of states for which the failed VM serves as a primary to the corresponding backup, and replicates states without a backup after the failure onto another VM to create new backups. The method may be used as part of a method or system implementing the split/merge paradigm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.