Thanks a lot to all who helped me with this...
I replaced all new updated jars: commons-dbcp-1.1.2.jar,
commons-pooling.1.2.jar and Classes12.jar, and the scalability problem
(ORA-00020: maximum number of processes (200) exceeded) is gone..

-----Original Message-----
From: Michael J. Makunas [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 28, 2004 3:37 PM
To: Tomcat Users List
Subject: Re: Tomcat 4.1 Connection Pooling...


Just a thought (and I apologize if this was already mentioned.....I
missed the very beginning of the thread), but I would also make sure you
have the latest connection pooling jars. I recently had a problem where
even though I had the tomcat configured to reclaim abandoned
connections, some were still remaining open. Turned out there was a bug
in the dbcp jar and upgrading to the latest solved it.

-Michael

Dale, Matt wrote:
> Every time your application uses a connection it should call the close()
method to return it to the pool. I had a similar problem where over a fairly
short period of time there was a database error which caused the execute to
throw an exception. I had forgotten to put a finally block in that section
so the connection never got closed. Once I put a finally block in with a
con.close() then it solved my problem.
>
> Ta
> Matt
>
> -----Original Message-----
> From: Shilpa Nalgonda [mailto:[EMAIL PROTECTED]
> Sent: 28 September 2004 20:04
> To: Tomcat Users List
> Subject: RE: Tomcat 4.1 Connection Pooling...
>
>
> how can i check that and how to resolve it...
>
> -----Original Message-----
> From: Dale, Matt [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, September 28, 2004 3:06 PM
> To: Tomcat Users List
> Subject: RE: Tomcat 4.1 Connection Pooling...
>
>
>
> Perhaps your application is hanging on to the database connections and not
> returning them to the pool?
>
> -----Original Message-----
> From: Shilpa Nalgonda [mailto:[EMAIL PROTECTED]
> Sent: 28 September 2004 19:43
> To: Tomcat Users List; Peter Lin
> Subject: RE: Tomcat 4.1 Connection Pooling...
>
>
> I have updated with classes12.jar, but still i have this problem.  But
Peter
> what ii sthe bug that you
> mentioned, i have the problem of
> java.sql.SQLException: ORA-00020: maximum number of processes (200)
exceeded
>

--
** Michael J. Makunas ** http://www.makunas.com/ **


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