Transaction processing using torn write detection
US9477557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2013 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Oct 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Performing a transaction in the context of a computing system that has one or more persistent systems coupled to one or more processors over a bus. As an example, the persistent system may serve as at least part of the main memory of the computing system. The transaction might implement multi-versioning in which a record is not updated in place. Rather, each record is represented as a sequence of one or more record versions, each version having a valid interval during which the record version is considered to properly represent the record. The transaction processing uses torn write detection so that recovery processes may use such guards to verify that there are no torn writes. For instance, torn write guards may be used to verify the integrity of record versions as well as the log buffers that refer to the record versions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.