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SYNCRONOUS PROCESSING SUSPENDING IN PARALLEL ENVIRONMENT

IP.com Disclosure Number: IPCOM000013485D
Original Publication Date: 1999-May-01
Included in the Prior Art Database: 2003-Jun-18

Publishing Venue

IBM

Abstract

In the Parallel Transaction Processing System environment, this queuing mechanism allows users to stop accessing target databases synchronously, thus enabling the databases to be maintained while data is being input into the system. This on-line transaction processing system is configured in such a way it has one or more queues and transaction data stored in the queues are processed sequentially by a single task or multiple tasks. Each task processes transactions from one queue in exactly the same way, so the tasks are as indistinguishable as clones. An overview of the system is shown in Figure 1. A Qin task stores transaction data in a queue. Qout tasks process transaction data from the queue in parallel. The system includes a Qin Control Database and a Qout Control Database with some controlling data. Queue1 Command Processing Task