International Business Machines Corporation

Daniel Fernando De Araujo

Paul Richards

Todd Charles Sorenson

Brian Anthony Rinaldi

Kumar Ravi

Radhakrishnan Sethuraman

Manuel Silveyra

Timothy James Crawford

James Mathew Davison

A computer implemented method, data processing system, and computer program product for managing transactions on point-of-sale terminals comprising a peer-to-peer network in a retail data processing system. A purchase transaction for a customer is initiated on a point-of-sale terminal in the system. Responsive to receiving a first input from a user of the point-of-sale terminal, the purchase transaction is suspended to form a suspended purchase transaction. Information about the customer is added to the suspended purchase transaction. The suspended purchase transaction is stored as a file on the point-of-sale terminal. Responsive to receiving a second input from the user of the point-of-sale terminal, a locally-stored list of suspended purchase transactions on the point-of-sale terminal is searched using the information about the customer. Responsive to locating the suspended transaction matching the information about the customer, the suspended transaction is selected to restart the suspended purchase transaction on the point-of-sale terminal.

Method and system for pausing, migrating, and restarting retail point-of-sale transactions

A computer system including a communication fabric initiates a forced diagnostic to isolate and identify genuine error conditions which are discerned from sympathetic error conditions. Error counters are only incremented for each genuine error condition, precluding the need to set error counter threshold artificially high. Recovery events are logged in a recovery table and recovery actions are only initiated after the diagnoses processes is complete. This prevents duplication of recovery actions and the unnecessary implementation of low-level recovery actions when they will be followed by higher-level recovery actions.

Failure isolation in a communication system

Techniques are provided for selecting status data. Redundant views are obtained from multiple synchronous redundant devices. It is determined that the redundant views from the multiple synchronous redundant devices are conflicting. A redundant view score is calculated for each of the redundant views based on one or more characteristics from each of at least two characteristic types, wherein the characteristics are associated with weighted scores. One of the redundant views is selected based on the calculated redundant view score for each of the redundant views.

Selection of status data from synchronous redundant devices

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Tucson, AZ, United States of America

Daniel Fernando De Araujo