Make sure you close every ResultSet, every Statement and every
PreparedStatement after your done with it. It's a very good idea to do this
in a finally block to make sure it always happens, something like this works
well and in the newer VM's isn't too big of a performance hit:
Connection con = ConnectionPool.get();
try {
Statement stm = con.createStatement ();
try {
ResultSet res = stm.executeQuery("select * from users where
username='Mark'");
try {
while(res.next()) {
// Do Something with the data
}
} finally {
res.close();
}
} finally {
stm.close();
}
} finally {
ConnectionPool.release(con);
}
(*Chris*)
----- Original Message -----
From: Mark Foley <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 11, 1999 4:01 PM
Subject: JDBC-Oracle connections not disconnecting
> Hi All!
>
> Again a problem! We are using Oracle thin JDBC drivers to talk to Oracle
> 8.0.5.0 on Solaris using a dynamic connection pool. We are running out of
> connections (limit = 100) even though we have no more than 2 or 3 people
> using the servlet at any time, and we are being careful to shrink the pool
> when fewer users are 'logged in'.
>
> We have traced the connection pool and logged the connects and disconnects
> to a file, and there are never more than 5 connections open at the same
> time. Our DBA tells us each time Oracle runs out of connections there are
> 100 connections registered to 'JDBC'. Rebooting the servlet server
doesn't
> help either.
>
> We are using IBM WebSphere 2.02 with MS IIS 4 on WinNT 4 SP5, but have
kept
> our code generic for use (if necessary) on other platforms.
>
> Any help would be most appreciated - this is a reall worry (and in the
land
> of "No Worries!" that's not good).
>
> Many thanks,
>
> Mark Foley
> EDS (Australia)
> Tel: +61-2-6275 6494
> e-mail1: [EMAIL PROTECTED]
> e-mail2: [EMAIL PROTECTED]
>
>
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