Frustrating, I also have to communicate with a MS SQL 2000 db server.
Not having started on the JDBC work I would be interested to know:
a) what kind of experiences people have made using JDBC in a Cocoon 2.x
environment talking to MS SQL 2000
b) any pointers to alternative (other than MS) JDBC drivers, if that's the
bottleneck.

Thanks,
Horst

----- Original Message -----
From: "Nicola Ken Barozzi" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 04, 2002 11:57 PM
Subject: Re: Load test with ab
> "
> Out of all the drivers we used, Microsoft's new JDBC driver had the most
> problems. It's still a beta driver in the form distributed on Microsoft's
> Web site, but it's not a new product per se, because it's based on code
> licensed from DataDirect Technologies Inc., which has had the leading
> third-party SQL Server JDBC driver for some years now.
> Providing and supporting its own JDBC driver is a very welcome move, and
> Microsoft officials informed us last month that they had 70,000 downloads
of
> the driver so far, so there is considerable customer interest in it.
> However, the driver, in both Beta 1 and Beta 2 forms (we tested both), has
> serious performance and stability problems.
> Using the driver, we were unable to get more than about
200-page-per-second
> throughput, and the problem was clearly the driver-the database was only
at
> about 15 percent to 20 percent CPU utilization at this load. The driver
also
> has memory leaks: We could see on WebLogic's administration console that
> less memory was freed each time the Java virtual machine did a garbage
> collection. Because of these leaks, the Microsoft JDBC driver was unable
to
> run for 8 hours straight.
> "
>
> You should change driver (see 3rd party) od DB ;-)
>
> --
> Nicola Ken Barozzi                   [EMAIL PROTECTED]
>             - verba volant, scripta manent -
>    (discussions get forgotten, just code remains)
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