Integrating database management system and external cache
US9779127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24552
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Example systems and methods for integrating a primary data store (e.g., a source-of-truth relational database management system) and a secondary data store (e.g., external cache) are described. The approach implements a modified read-through/write-through data access pattern that integrates read and write flows in order to support high-concurrency environments while maintaining immediate consistency between stores. Writes are handled using a three-phase flow that avoids concurrency-related race conditions and the need to block in the secondary store in order to maintain cross-store consistency. Reads are never dirty and will repair the secondary store as needed without conflicting with repairs that may have been initiated by other sessions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.