[690] in Zephyr_Bugs
Zephyr suggestions?
daemon@ATHENA.MIT.EDU (Peter Berger)
Wed Aug 16 09:17:31 1995
Date: Wed, 16 Aug 1995 09:19:22 -0400 (EDT)
From: Peter Berger <peterb@telerama.lm.com>
To: bug-zephyr@MIT.EDU
Hi,
I'm working on getting Zephyr working in a multi-platform, Kerberos 4
environment. I wanted to ask your advice on where to look for help with
a particular problem I've been dealing with. I'm trying to automatically
send weather reports once per hour. Most of these reports are about 2000
characters long, or longer.
Small messages work fine. When I try, however, to send a message larger
than about 1000-1500 characters (via, for example, "zwrite -d -c weather
-i pgh < /tmp/weather.222"), a couple of things happen:
1) The message never gets there, though -v reports successful
delivery.
2) After maybe two or three of these messages, the user the message
was sent to is no longer registered with the server, though his or
her zwgc is still running.
My first crack at the source was to increase Z_MAXPKTLEN from 1024 to
6192. After doing this, I noticed that 'large' messages work OK if the
zwgc is running on the same machine as the server, but when sent across
the network, the failure mode described above occurs (complicating
things, the server is on a BSDI box, while most of the other machines are
Ultrix MIPS boxes.
Also, messages larger than 6192 chars get through OK on the server.
My basic problem is that I can't tell where the failure is occurring.
My guess is it's between either the server and the recipient's zhm, or
the recipient's zhm and their zwgc; but I can't be sure. Have you seen
this problem before? I'm continuing to look at the source, but help is always
a good thing.
Thanks,
Peter
