Method and apparatus for creating and using persistent images of distributed shared memory segments and in-memory checkpoints
US7779295B1 · kind B1 · utility
37Cited by
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20Claims
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Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus that enable quick recovery from failure or restoration of an application state of one or more nodes, applications, and/or communication links in a distributed computing environment, such as a cluster. Recovery or restoration is facilitated by regularly saving persistent images of the in-memory checkpoint data and/or of distributed shared memory segments using snapshots of the committed checkpoint data. When one or more nodes fail, the snapshots can be read and used to restart the application in the most recently-saved state prior to the failure or rollback the application to an earlier state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.