METHOD OF EXCLUDING INACTIVE NODES FROM TWO-PHASE COMMIT OPERATIONS IN A DISTRIBUTED TRANSACTION PROCESSING SYSTEM
Patent №
US 5,258,982
Granted
1993-11-02
Filed 1991
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP. OF NEW YORK
Lab
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07696667
A method of reducing the number of messages required for sync point (commit or backout) operations by leaving out nodes that have not participated in the corresponding transaction. A two-phase sync point protocol is used in a distributed transaction processing network to commit or backout transactions in the network. In response to the beginning of sync point operations on a transaction x, each node determines if each of its partner nodes stated on the sync point operation for transaction x-1 that the partner could be left out of sync point operations for transaction x-1. If a partner node did so state that it could be left out, the present node determines if the partner node was included by the present node during the present transaction x. If the partner node was not included during the present transaction, the present node excludes the partner node from the present sync point operations.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION, A CORP. OF NEW YORK
assignment · 57250508
Assignors
BRITTON, KATHRYN H., CITRON, ANDREW P., MOHANM CHANDRASEKARAN, SAMARAS, GEORGE M.
On an employer assignment, the assignors are typically the inventors.