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Solution to taking over failed communication with a server transaction processing system by another remote server transaction processing system

IP.com Disclosure Number: IPCOM000190131D
Original Publication Date: 2009-Nov-18
Included in the Prior Art Database: 2009-Nov-18
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Abstract

The present disclosure concerns a client and a number of server transaction processing computer systems together with a user of a personal computer who connects to the client system to run transactions partly in a client and partly in a server system. When the user of a personal computer executes a transaction, communication between client system and server system can fail. If so, communication between the client system and another server system can be re-established but not using the internet. By the introduction of a processing feature of the client system together with a computer resource installed in all communicating systems allows communication to be re-established using internet communication.

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Solution to taking over failed communication with a server transaction processing system by another remote server transaction processing system

A software facility is disclosed which is a combination of processing behaviour by a client transaction processing system and a computer resource.

    The client system concerned communicates with a server system without using internet technology. In the event of communication failure between client and server systems this facility enables automatic establishment of communication to another server system. The software facility disclosed has the feature that after communication is restored, communication between the client system and the replacement server system uses internet technology even though it could not do so prior to communication failure. Communication between the client system and the server system is by means of program to program communication that relies on operating system supplied services. These operating system supplied services allow communication by data transfer between a client system and a server system.

    The operating system supplied services are restricted to providing communication for three configurations composed of the client system, the server system and their host operating systems.

    The first configuration is where client system and server system execute under the control of the same operating system image.

    The second configuration is where client system and server system execute under the control of different operating system images but which are nevertheless associated with central processing units which are part of the same hardware complex of a set of central processing units.

    The third configuration is where client system and server system execute under the control of different operating system images which communicate independently of the internet. This communication uses technology that predates and is separate from internet communication technology.

    During the time when these systems are available for the user of a personal computer to execute a transaction, communication between client system and server system can fail. When this happens operating systems services re-establish communication between the client system and another server system which is waiting in a state ready to receive communication for such an eventuality. Such a server system can be under the control of an operating system image that conforms to any of the three configurations and one that does not have to be same as that associated with the server system with which communication failed.

    As a consequence of...