Deadline-based scheduling in a distributed file system
US9047311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jan 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/1844
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Approaches for retrieving files from a replicated file system. A component receives, from a requestor, a request for a copy of a data unit. The component identifies a plurality of storage nodes that each stores a complete copy of the data unit. The component sends, to the plurality of storage nodes, an instruction to retrieve a copy of the data unit within a specified period of time. At each storage node receiving an instruction, a determination of whether the copy of the data unit may be retrieved within the specified period of time is made, and if so, the copy of the data unit is provided to the component only if the copy of the data unit was actually retrieved within the specified period. The component provides the first copy of the data unit it receives to the requestor and discards any subsequently received copies of the data unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.