Data synchronization method for maintaining and controlling a replicated data
US6389423B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The aim of the present invention is, as for a data communication among the nodes sharing, managing and maintaining the replicated data, to reduce the communication traffic by utilizing attributes of individual communication media. The application program of the node on the transmitting side inserts the data object into the data store, and the data synchronizer transmits an update message including the differential data and the log number. The node on the receiving side compares the log number of the update log data of its node and the log number of the update message it has received, and decides whether or not to adopt the update message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.