Sharing and deconflicting data changes in a multimaster database system
US8515912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/273
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-based method and system for sharing and deconflicting data changes amongst a plurality of replication sites. In a particular embodiment, data changes at sites to data objects are tracked by each site on a per-data object basis using per-data object version vectors. In another particular embodiment, data changes at sites to links connecting two data objects are tracked by each site on a per-link set basis using per-link set version vectors. In another particular embodiment, per-object version vectors are used to detect a conflict resulting from concurrent changes at two or more sites in which one of the concurrent changes includes an object resolution change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.