Persistent cache layer in a distributed file system
US10146694B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Aug 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Implementations are provided herein for having at least two data streams associated with each file in a file system. The first, a cache overlay layer, can store additional state information on a per block basis that details whether each individual block of file data within the cache overlay layer is clean, dirty, or indicates that a write back to the storage layer is in progress. The second, a storage layer, can be a use case defined repository that can transform data using data augmentation methods or store unmodified raw data in local storage. File system operations directed to the cache overlay layer can be processed asynchronously from file system operations directed to the storage layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.