Generating map task output with version information during map task execution and executing reduce tasks using the output including version information
US9378053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2011 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | May 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for operating a data center. The method includes, in response to a map task distributed by a job tracker, a map task tracker executes the map task to generate a map output including version information. The map task tracker stores the generated map outputs. The map task tracker informs the job tracker of related information of the map output. In response to a reduce task distributed by the job tracker, the reduce task tracker acquires the map outputs for key names including given version information from the map task trackers, wherein the acquired map outputs include the map outputs with the given version information and historical map outputs with the version information prior to the given version information. The reduce task tracker executes the reduce task on the acquired map outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.