International Business Machines Corporation

Clark W Walker

Austin Willoughby

Ralph A Rinke

Validating a write of a replica record to a replica data store in a transaction processing system. The source record is written to a location in the source data store, and the location is recorded in a transaction log file. The transaction processing system obtains from the transaction log file the location, and the location in the replica data store to which the replica record will be written is predicted, based on the location and length of the previous replica record. If the obtained location of the source record corresponds to the predicted location of the replica record location, the replica record is written to a location in the replica data store.

Predicting validity of data replication prior to actual replication in a transaction processing system

A method, computer program product and computer system to validate a write of a replica record to a replica data store in a transaction processing system, the replica record duplicating a source record in a source data store. The transaction processing system obtains a value associated with a record location of the source record in the source data store. The transaction processing system predicts a value associated with a record location of the replica record in the replica data store and responsive to the obtained value associated with the source record location not corresponding to the predicted value associated with the replica record location, not writing the replica record.

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Erie, PA, United States of America

Clark W Walker