Volume durable log sequence number movement in a multi-volume database environment
US12353397B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2022 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Apr 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for volume durable log sequence number movement in a multi-volume database environment are described. Blocks of database updates are persisted in an atomic and durable manner, where the blocks may include updates to a first volume, a second volume, or both. Backlinks from one block of updates to the previous block of updates may be set, in addition to backlinks between updates to the first volume and backlinks between updates to the second volume. Upon durably persisting a block, the block backlinks can be followed to help verify that all contiguous blocks—of changes to one or both volumes—have all been persisted. Thereafter, a volume durable log sequence number (VDL) pointer value can be updated to point to a known “last” durably persisted log update.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.