J2EE system in production..., please help.

Question

Hi ,
We developed a LARGE BC4J / J2EE based transactional aplication.
We plan to put it in the production environment :
the system is tested whith a stand-alone OC4J started like java -Doc4j.userThreads=true -Xms100m -Xmx800m oc4j.jar.
we used -Xms100m -Xmx800m to workaround a messages like Out of memory ( we have a large jsp using a lot of BC4J tags).
Now
our system be deployed (for production ) on 9iAS R2. we will have about 40 concurent users connected to this transactionnal
system.
So what is the good practice to put our system in the production environment
our environment is :
Server Sun
4 x CPU (450)
4 G of RAM
Sun Solaris 8
Oracle 9iAS R2 (9.0.2.0.0)
should we use parameters like -Xms100m -Xmx800m whith the OC4J instance within 9iAS. if yes, HOW To...
Just an alternative and for tow days of real testing, i would like to use a stand-alone OC4J to connect 40 users. i do not
know if java -Doc4j.userThreads=true -Xms100m -Xmx800m oc4j.jar will be the good starup procedure for the container.
thank you very murch in advance.

Answer 1

Yes, you're on the right track.
for more performance and best practices refer
http://otn.oracle.com/docs/products/ias/doc_library/90200sol_otn/perf.902/a95102/optj2ee.htm#1656
to set command line parameters in Oracle9iAS, do the following:
In enterprise manager( the tool you would use to manage your Oracle9iAS)
click on the OC4J instance where you would deploy your app
Scroll down, click on server properties
scroll down and add parameters in the command line section.
restart the OC4J instance.
-Prasad