Re: Synchronization issues with pg73jdbc3.jar and pg73jdbc2ee.jar

Those stacktraces are exactly my concern. I don't expect my code to behave
like that :).

On Mon, 26 May 2003 11:30:50 -0700, Barry Lind <blind@xythos.com> wrote :

> Gerlite,
>
> I ran the test program you submitted and it seems to run OK (other than
> some duplicate key in index errors).  What is the problem you are
> seeing?  Specifically what are you expecing to happen, and how does what
> you are seeing differ from your expectatations.
>
> thanks,
> --Barry
>
> Gerlits AndrXs wrote:
> > Attached you'll find a simple multi-threaded example of a couple of
> > SERIALIZABLE transactions. I hope, I'm not making a complete ass of
myself,
> > but it seems that the JDBC driver is unprepared to handle simultaneous
> > SERIALIZABLE transactions.
> >
> > The table structure to test with is really simple:
> >
> > CREATE TABLE test (
> >     id integer UNIQUE NOT NULL
> > );
> >
> > The program tries to access the database for the highest id available,
then
> > use it in a preparedstatement.
> >
> > (The reason we do that is to prepare for the worst DB server available,
we
> > know that there are other ways to do this in postgres.)
> >
> > It first opens the connections, stores them, than hands them to the
threads.
> >
> > No connection is issued twice simultaneously.
> >
> > Please edit the variables at the top, but check not to have more
> > InserterThreads than dbConnections.
> >
> > Thanks
> > Andras Gerlits
> >
> >
> > ------------------------------------------------------------------------
> >
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 3: if posting/reading through Usenet, please send an appropriate
> > subscribe-nomail command to majordomo@postgresql.org so that your
> > message can get through to the mailing list cleanly
>
>
>
>
>