MapReduce for distributed database processing
US8190610B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2006 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/968
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input data set is treated as a plurality of grouped sets of key/value pairs, which enhances the utility of the MapReduce programming methodology. By utilizing such a grouping, map processing can be carried out independently on two or more related but possibly heterogeneous datasets (e.g., related by being characterized by a common primary key). The intermediate results of the map processing (key/value pairs) for a particular key can be processed together in a single reduce function by applying a different iterator to intermediate values for each group. Different iterators can be arranged inside reduce functions in ways however desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.