dentarg - Tue, 10/30/2012 - 10:47
Lately I've been troubleshooting "JBO-30003: The application pool failed to checkout an application module" error with Oracle Application Server 10g. The person which reported the error, said that this is definitely server side issue. So I started to debug this problematic java application.
Oracle Metalink and Oracle forums claims that this is DB connection related error. So after dealing with some OC4J different configurations I started to debug this application on OS level.