Patent · US Expired

Transaction control

US5390302A · kind A · utility

13Cited by
24References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 13, 1993
Grant dateFeb 14, 1995
Priority date
Expiry dateMay 13, 2013

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F9/466
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A transaction management protocol for a multi-processor computer system in which the processors are organized in multi-level hierarchy for implementing the transaction, the protocol being a modification and elaboration of the Presumed Abort (PA) protocol. A coordinating processor is permitted to forget the participation of a subordinate as soon as the protocol has reached the point at which the subordinate's actions on recovery from a crash would be independent of the outcome (commit or abort) of the protocol.

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