Hi all, We are stress testing an J2EE application on Websphere App Server 4.0.3 and running into problems. We use OJB v 0.9.7 for the data layer, instead of entity EJB's. The OJB functionality is called from a layer of stateless session EJB's.
The problem is that, when running requests from different clients at the same time, numerous requests to the database time out, likely because of problems with getting a database connection. We use an Oracle (9.0.1) connection pooled datasource from OJB. When stress testing normal JDBC calls (not involving OJB) using the same datasource, we experience no problems. So the problem is maybe in the configuration of the OJB layer. We tried several settings in the OJB.properties file, especially setting the ConnectionFactoryClass to ConnectionFactoryNotPooledImpl instead of the ConnectionFactoryManagedImpl (to make sure connections get closed, that is returned to the data source connection pool) but that didn't help. We are currently running late with our project and running out of ideas, so if any of you could give us timely advice on this one, it would be deeply appreciated. Especially, if you have experiences with a production system with a similar architecture, it would be very helpful to know how you did configure OJB. Thanks! Jeroen Pielage TNO the Netherlands --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
