International Business Machines Corporation

Jack C Yuan

David A Cameron

Benjamin P Johnson

Kenneth R Blackman

Shyh-Mei Fang Ho

Jenny ChengYin Hung

Jeffrey L Maddix

Elvis B Halcrombe

Yoshinobu Ueno

Kevin Richard Stewart

Li-Chuan J Yang

Nai-Wen Shih

Michael Richard Artobello

Suzette M Wendler

Michael R Artobbello

Donald Bearden

Carson W Tsai

A method and technique for link optimization for callout request messages includes monitoring one or more time-based parameters for each of a plurality of links between a communication pipe of a host system and one or more service systems. The links are used to send callout request messages between one or more applications running on the host system and the one or more service systems that process the callout request messages. The one or more time-based parameters are associated with different stages of callout request message processing by the communication pipe and the one or more service systems. The method also includes creating control data based on values of the one or more time-based parameters, creating the callout request messages to include the control data, and distributing the callout request messages to the one or more service systems via the links.

Link optimization for callout request messages

A method includes receiving, by a multi-purpose callout processor, a transaction input from an external client application. The transaction input includes a request to perform a specific functionality by a transaction processing system. The multi-purpose callout processor implements a multi-purpose application program interface between the external client application and the transaction processing system. The method also includes performing a callout based on the transaction input. The multi-purpose callout processor is configured to perform a plurality of types of callouts.

Processing transactions using a multi-purpose callout processor

According to embodiments a technique for utilizing an error prediction an avoidance component for a transaction processing system is provided. The technique includes identifying critical functions of the transaction processing system, and collecting usage data. The technique also includes determining a focus area based on the usage data for each of the critical functions, and generating a data message for the focus area, the data message combining internal data and the usage data. The technique includes transmitting the data message to a data processing component (DPC), the data message includes DPC timer information used by the DPC for performing a summarization process, and receiving a summary message from the DPC based on the summarization process performed by the DPC. The technique also includes identifying a summary message focus area from the summary message, and determining a condition of the summary message focus area of the summary message.

Utilizing an error prediction and avoidance component for a transaction processing system

A method, computer program product and system uses a tiered priority system having three types of callout messages for use by a transaction processing system: (i) callout with a reserved path; (ii) callout with priority; and (iii) default priority callout with sharing mode. An online transaction program (OTP) issues a 'reserve call' associated with a 'callout with a reserved path'. In response, a reserve call processor initiates an asynchronous request to build an express socket path, and returns a special dispatchable unit of work identifier (special DUOW ID). The OTP subsequently issues any number of callouts to be sent on the express socket path using the special DUOW ID. A callout with priority dynamically allocates a path for sending a callout message, without queuing. A sharing mode combines a group of callout messages (types (i), (ii), and/or (iii) above) into a single TCP/IP send without queuing.

Tiered priority system and callout performance booster

According to one aspect of the present disclosure, a method and technique for link optimization for callout request messages is disclosed. The method includes: monitoring a plurality of different time-based parameters for each of a plurality of links between a communication pipe of a host system and one or more service systems, the links used to send and receive callout request messages between one or more applications running on the host system and the services systems that process the callout request messages, the time-based parameters associated with different stages of callout request message processing by the communication pipe and the service systems; assessing a performance level of each of the plurality of links based on the time-based parameters; and dynamically distributing the callout request messages to select links of the plurality of links based on the performance assessment.

Techniques are disclosed to transmit arbitrarily large data units for transaction processing in a networked environment. A request is received to store a data unit of a size exceeding an allocated memory address space of a transaction gateway component of the networked environment. A predefined store function, provided by a repository interface component, is invoked to store the data unit to a data repository component of the networked environment and without segmenting the data unit. A repository handle of the stored data unit is identified. A predefined load function, provided by the repository interface component, is invoked to load a portion of the stored data unit, based on the identified repository handle, where the portion is smaller than the stored data unit.

Data transmission for transaction processing in a networked environment

An apparatus, system, and method are provided for sharing a cached security profile in a database environment. The apparatus, system, and method include a cache module for caching a security profile accessible to primary tasks and secondary tasks. An identification module is provided that distinguishes between primary tasks authorized to refresh the security profile and secondary tasks. A refresh module cooperates with the cache module and identification module to selectively refresh the security profile in response to a refresh request and expiration of the security profile such that an old version of the security profile is retained for use by secondary tasks until an execution window closes.

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San Jose, CA, United States of America

Jack C Yuan