Transfer of a set of segments between storage clusters of a database system
US12254001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2023 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jul 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/27
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transfer segment group task processing module of a database system is operable to send a first begin segment group transfer instruction to a first storage cluster based on a determination to transfer a set of segments stored via the first storage cluster to a second storage cluster. A target first ownership sequence number is received from the first storage cluster. A second begin segment group transfer instruction to the second storage cluster. A transfer complete notification is received from the second storage cluster. A complete storage instruction is sent to the second storage cluster. An updated second ownership sequence number is received from the second storage cluster indicating updating of second data ownership information of the second storage cluster. A commit transfer instruction is sent to the first storage cluster based on updated second ownership sequence number received from the second storage cluster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.