Ensuring globally consistent transactions
US9569253B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2477
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present technology proposes techniques for ensuring globally consistent transactions. This technology may allow distributed systems to ensure the causal order of read and write transactions across different partitions of a distributed database. By assigning causally generated timestamps to the transactions based on one or more globally coherent time services, the timestamps can be used to preserve and represent the causal order of the transactions in the distributed system. In this regard, certain transactions may wait for a period of time after choosing a timestamp in order to delay the start of any second transaction that might depend on it. The wait may ensure that the effects of the first transaction are not made visible until its timestamp is guaranteed to be in the past. This may ensure that a consistent snapshot of the distributed database can be determined for any past timestamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.