Efficient recovery of transactional data stores
US8954385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/273
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Approaches for recovering a node of a distributed transactional system. When a recovering node is being brought on-line, a copy of at least a portion of a first data store maintained by an existing node is created without ceasing to process transactions against the first data store at the existing node. The recovering node creates a second data store based on the copy of the first data store. While the recovering node creates the second data store, the recovering node stores committed transaction data received from a plurality of nodes. The committed transaction data describes transactions committed against data stores maintained by the sender of the committed transaction data. The recovering node may thereafter replay, against the second data store, any transactions identified by the committed transaction data that are associated with a global transaction number that is more recent than is a reference commit number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.