International Business Machines Corporation

Khiet Quang Nguyen

Jack Chiu-Chiu Yuan

Gerald Dean Hughes

George S Denny

Michael Bruce Kennedy

Shyh-Mei Fang Ho

Richard C Schneider

Leilei Li

Benjamin P Johnson

Communication between one system and another system using one communication mechanism has failed. The one communication mechanism includes an operating system service to transfer a message between the one system and the other system. Based on determining that the communication between the one system and the other system has failed, automatically switching from the one communication mechanism to another communication mechanism to communicate the message between the one system and the other system. The other communication mechanism is different from the operating system service and uses a coupling facility list structure.

Communicating between systems using a coupling facility list structure

An apparatus, system, and method are disclosed for enabling a conversational transaction in a service oriented architecture. The apparatus, system and method include receiving at an IMS Connect a first conversational transaction ('CT') request comprising a conversation option flag from a Java client over a TCP/IP connection to a first socket of the IMS Connect and transmitting the first CT request to an IMS. The apparatus, system, and method include receiving from the IMS a first response to the first CT request and a conversational transaction identifier ('CTID'), and returning the first response along with the CTID to the Java client in response to the conversation option flag being set. The first response and CTID are transmitted using TCP/IP. The response is a portion of the conversational transaction and the CTID is configured to identify to the IMS subsequent CT requests from the Java client as part of the CT.

Apparatus, system, and method for enabling conversational transactions in a service oriented architecture

An apparatus and system for an expandable, hinged, multi-panel presentation. The apparatus includes a main rectangular panel, a side rectangular panel, a fastener, and an interior rectangular panel. The interior rectangular panel includes a proximal interior section having a width equal to the width of the side rectangular panel and a distal interior section coupled to the proximal interior section by a vertical hinge. The vertical hinge permits the distal interior section to pivot relative to the proximal interior section. In a first position, the interior rectangular panel displays presentation material on a front display face while overlaying the main rectangular panel and in a second position, the interior rectangular panel pivots and displays presentation material on a back display face while overlaying the side rectangular panel. Beneficially, the apparatus and system displays a greater amount of presentation material without increasing spatial area required for the display system.

Apparatus and system for an expandable, hinged, multi-panel presentation

An UOWE is created to represent a message which is put out to the coupling facility. If it is a committed message and the PUT failed for some reason, the UOWE is flagged for &ldquo;retry&rdquo;. These retry UOWEs will accumulate over time. The retry logic analyzes each &ldquo;retry&rdquo; UOWE, extracts the log token from this UOWE, uses this log token to read a specific log record from the IMS log data set and attempts to put the committed message to the central facility again.

UOWE's retry process in shared queues environment

During phase one of each protected conversation transaction, one or more messages are inserted. These messages are logged for recoverability. IMS system could crash before phase two of commit. When IMS restarted and eventually reached phase 2, it could vote to abort or commit the conversation. During IMS restart, the retry logic is used to put all protected conversation messages out to central facility with a specification that the first message segment be put on the staging queue using the recovery token as the queue name. If it is an abort request, all messages under the same commit scope identified by the recovery token, will be deleted. If it is a commit request, the first segment of all messages under the same commit scope will be moved to its appropriate ready queue with its actual queue name.

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San Jose, CA, United States of America

Khiet Quang Nguyen