Oracle JDBC DriverManager.getConnection() hangs

Question

We have several servers that each run an Oracle database 11g Release 11.2.0.1.0 - 64bit. We are connecting via JDBC like this:

public Connection createConnection         


        

Answer 1

You might want to enable JDBC debug logging for the ojdbc driver: http://docs.oracle.com/cd/B28359_01/java.111/b31224/diagnose.htm That might give you some information about what the driver is doing.

Have you tried telnet-ing to the database server from the client machine (to assert it's reachable)?