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This page contains an archived post to the Design Forum (formerly called the Flexible Java Forum) made prior to February 25, 2002. If you wish to participate in discussions, please visit the new Artima Forums.


Contention Problem

Posted by Roberta on November 28, 2001 at 11:38 PM

> REWARD - Any assistance which resolves the problem fully will be rewarded financially.

> Technology
> Java programming language running Java Webserver v1.1.1. The system connects to DB2 v3.1 via Neon's Shadow Direct ODBC Driver version 3. The technology claims to be multi-threading enabled.

> Symptom
> When running a number of users through the system concurrently, the system will stop responding and 'hang'

> Cause
> Problem has been traced to one line of code.
> As the system processes the entered data, it will establish a connection into DB2(on the mainframe(MVS)), and process SQL transactions against the database to validate details.
> When closing the database connection, the system 'hangs'

> Please respond to


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