Data reading method, device and system
US10114577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2017 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/173
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data reading method, a data processing device, and a data processing system are provided. The method, executed by a first control node, includes receiving a reading message forwarded by a data switching device, where the reading message is used to instruct the first control node to read first data, and the reading message is sent by a second control node to the data switching device; if a data status identifier of the first data in a first storage node is a valid identifier, reading the first data from the first storage node, and sending the read first data to the data switching device, so that the data switching device forwards the read first data to the second control node, where the valid identifier indicates that the first data on the first storage node is available. The present application ensures that the latest first data in the node group is read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.