Patent · US Active

Increasing database availability during fault recovery

US8326801B2 · kind B2 · utility

1Cited by

4References

13Claims

0Family size

Assignee

Microsoft Corporation · US

Inventors

Vishrut Shah · Redmond, US
Santeri Olavi Voutilainen · Seattle, US
Tomas Talius · Sammamish, US

Key dates

Filing date	Nov 17, 2010
Grant date	Dec 4, 2012
Priority date	—
Expiry date	Mar 4, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F11/2094
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments are directed to providing database access during database reconfiguration and to maintaining replication connections during database reconfiguration. In an embodiment, a computer system establishes multiple quorum sets of replicas to replicate the data of a data partition. The quorum sets of replicas ensure that at least a minimum number of replicas are operating to commit pending transactions during partition reconfiguration. The computer system determines that a data partition reconfiguration has been initiated and provides access to the data partition's data during reconfiguration of the data partition using at least a quorum of replicas in each of the quorum sets of replicas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.