Why does it take over 2 minutes to get a database connection from the DataSource?

Question

Hello,
It is taking over 2 minutes for my application to get a connection from a registered DataSource in iAS 6.0 sp4 on Solaris. The proper results are returned it just takes 2 minutes to establish the connection. The DataSource is an Oracle 9i database. I have the 9i drivers in the classpath. I also have a registered datasource that is an Oracle 8 database and have no problems establishing a connection quickly to that database. As an aside I have setup this application on JBOSS and both datasource's return a connection very quickly. If anyone has any ideas about what might be going on please respond. This issue is holding up a production release.
Here is the code:
try {
log.debug("getting a new initial context");
ctx = new InitialContext();
ds = (DataSource) ctx.lookup(bundle.getString("IW_DATASOURCE"));
log.debug("after looking up datasource from initial context");
} catch (NamingException e) {
log.error(e);
throw new FinstarException
(bundle.getString("E-0001"));
try {
log.debug("about to get connection");
conn = ds.getConnection();
log.debug("after getting connection");
Produces this in the logs:
2002-05-29 08:55:12,859 DEBUG org.mitre.mii.project.finstar.FinancialSummary - about to get connection
2002-05-29 08:57:24,963 DEBUG org.mitre.mii.project.finstar.FinancialSummary - after getting connection
Here is the datasource registration file:
<ias-resource>
<resource>
<jndi-name>jdbc/pdc/IWDataSource</jndi-name>
<jdbc>
<database-url>jdbc:oracle:thin:@xxx.xxx.org:1521:acisdb</database-url>
<datasource>jdbc/pdc/IWDataSource</datasource>
<username>XXXXX</username>
<password>XXXXX</password>
<driver-type>OracleThinDriver</driver-type>
</jdbc>
</resource>
</ias-resource>

Answer 1

Have you tried to eliminate everything extraneous. In other words, do you experience the same delays with a simple Java program (no lookups, JNDI) that loads the drivermanager and creates a connection.
Do you have access to a traciong JVM or some program that captures run-time execution timing information? Even without the source, this will tell you the specific class::methos where time is spent so you can better determine where the delay is ocurring.