Tomcat 6 stop running while Oracle XE runs

Question

Hi All,
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My Env:
Ubuntu 10
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After a full day's research & work I managed to install Tomcat 6, Cocoon & Java files successfully. The following is my problem.
I have an existing Oracle XE running with Apex 3.2.
When I start Tomcat 6 it gets started fine, but in few seconds it stops running and gives the message " Tomcat servlet engine is not running, but pid file exists.". I can stop & start this, or restart this but the same problem happens again after few seconds with the same message ( I know this by checking the status). During this few seconds running I am able to access it via the browser by http://localhost:8180 ( I modified the port from 8080 to 8180). Apex uses port 8080. During this time I don't have any problem with Apex (set to run at start up).
When I stop the Oracle Database and start Tomcat 6 it works fine, it continues to run perfectly. Again when I start the database, I am unable to access Apex via port 8080 & get the message "can't establish a connection to the server at 127.0.0.1:8080."
Can anyone please help me?
Thanks ever so much
Naushad

Answer 1

Hi Naushad,
you probably have missed a setting to migrate the tomcat to port 8180. The behaviour you describe fits to the one I'd expect for a port conflict - either service runs perfectly when he's "alone", but doesn't work if the other one started before.
You can fix this on both sides. Reconfiguration of the port your EPG hosts your APEX may be a little easier. You just have to login as sys and execute the following block:
begin
  dbms_xdb.sethttpport(8081);
end;
commit;Change the port to whatever value you want.
To change your Tomcat port configuration, you probably edited the following piece in your server.xml
<Connector port="8080" protocol="HTTP/1.1"
...You'll find other ports used by the Tomcat in that file as well. Make sure you don't have a conflict with some other service.
I'm running a Tomcat next to XE on Ubuntu 8.04. Since I had to reconfigure the Tomcats default SSL Port (8443 was already used by another web server on that machine), I moved all Tomcat ports from 80XX to 100XX, keeping the EPG on port 8080, and it works fine for me.
-Udo