Transaction model for data stores using distributed file systems
US9582520B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2013 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Aug 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/43
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transaction model for data stores using a distributed file system is disclosed. In various embodiments, a transaction-related metadata is sent to each of a plurality of segments to which a corresponding assigned portion of a query plan is assigned. A metadata modification record is received from zero or more of the segments, reflecting changes, if any, to system metadata required to be made to reflect changes to data made by that segment in processing the portion of the query plan assigned to that segment. It is determined whether a metadata modification record has been received from each of the segments in the plurality of segments. In the event a metadata modification record is determined to have been received from each of the segments in the plurality of segments, a system metadata store is updated to reflect the respective metadata modification records received from the plurality of segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.