System for maintaining consistency across a decentralized database cluster and method therefor
US10268744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/0625
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for maintaining consistency across a decentralized database cluster is presented. When a database server receives an index update message, it adds a message to a queue indicating it has received the message and watches an index update node. Once every server in the cluster has added a message to the queue or a timer has expired, it is known that every active database server has received the message. The update can be performed for each server and the changes committed simultaneously. In such a manner, all database servers in the cluster perform an update at approximately the same time. When a database server is unable to complete an update, it enters a fallen behind mode and performs updates more often, as configured in a configuration database. Other embodiments also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.