Patent · US Active

Distributed database system utilizing an extended two-phase-commit process

US8880486B2 · kind B2 · utility

77Cited by

1References

19Claims

0Family size

Assignee

SAP AG · DE

Inventors

Volker Driesen · Heidelberg, DE
Peter Eberlein · Malsch, DE

Key dates

Filing date	Jul 27, 2010
Grant date	Nov 4, 2014
Priority date	—
Expiry date	Jul 3, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/25
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A distributed database system is provided in which a commit coordinator ensures that transactions spanning multiple database instances are committed or rolled back consistently. The commit coordinator utilizes an extended two-phase-commit process. The extension of the two-phase-commit process enables, that if within the distributed database cohorts store redundant data for a productive operation, only one of the cohorts out of a redundancy group are required. By this, the distributed database is prepared to continue operation even during shutdown or failure of single cohorts. Related apparatus, systems, techniques and articles are also described.

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