Hybrid method for flushing transaction state in a fault-tolerant clustered database
US7028219B2 · kind B2 · utility
2Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Registration protocol is used in transaction processing for normal operations. If an error occurs, the system reverts to a Full Broadcast protocol. The Registration Protocol reduces the number of messages that are sent among CPUs in a cluster thereby permitting performance improvements in the system. The Registration Protocol has Begin, DP2 Check, Phase 1 Flush and Phase 2 (lock release) phases just as does the Full Broadcast Protocol, thereby permitting the Full Broadcast protocol to step in at any phase after an error is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.