Early detection of corrupt data partition exports
US10922303B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/27
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system that implements a data storage system may store data for a database table in multiple replicated partitions on respective storage nodes. An export of an active database partition may generate an exported copy of the database partition. A first exported copy may be stored locally on a source node and a second exported copy of the database partition may be sent to a recipient node. The source node may validate the first copy responsive to sending the second copy and may perform the validation while the second copy is being sent and processed at the recipient node. If the first copy cannot be validated, the source node may cause the second copy to be invalidated and abort further processing of the second copy. The source node may also cause the second copy to be marked as invalid to prevent reliance on an invalid database partition copy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.