One last thing, the situation with delayed connections gets worse as the
number of already connected sessions increases, even when the session do
nothing but stay connected.

Peterw.
-----Original Message-----
From: Torsten Welches [mailto:torsten.welches@...]
Sent: Thursday, 10 August 2000 6:18 PM
To: IB-Java@egroups.com
Subject: [IB-Java] Re: problems with connections in v1.6

--- In IB-Java@egroups.com, "Shaunak Mistry" <smistry@i...> wrote:
> Peter Wilkinson wrote:
> >
> > Hi,
> > I'm trying to debug a strange situation when using the following:
> > JRun Servlet Engine 3 with a pool of connections -> Interclient
1.6 ->
> > Interbase SuperServer 6 all on the same machine and all running
on Linux
> > (I've tried Sun's JDK and IBM JDK both v1.3)
>
> Peter,
>
> Interclient 1.6 has been certified with JDK 1.2 not 1.3. Have you
> tried it with JDK 1.2?
<snip>
> If this is happening with JDK 1.2 then it should be a bug in IC.

I doubt that this is a 1.2 vs. 1.3 problem. There's nothing
new/changed in 1.3 I could think of that would cause problems like
the described. In fact IC16 does not even use any JDK 1.3 or 1.2
features, not even 1.1! I guess you could still compile IC16 under
JDK 1.0, that's why so many deprecations show up under 1.1 and higher.

Having said that I also doubt that it is a bug in IC itself. Since
InterClient does not talk to the Interbase server directly it is not
likely that it can lock it up. IMO InterServer would be a more likely
candidate.
If it would be a JRun/InterClient threading problem (e.g. deadlock)
JRun and the affected InterClient connection would lock, but why
would Interbase?

BTW - InterServer (I'm under NT) spawns a whole new NT-Process
(rather then only a new thread as I had expected) for each
InterClient connection. Why is that?

Here's a test to do multi-threaded InterClient connections to
InterServer. I did not have any problems, even with a bigger number
(say 50) of concurrent connections. Maybe you can use it for your
debugging, Peter. I run it both under 1.2.2 and 1.3

Regards,
Torsten