Date: Wed, 28 Aug 1996 00:22:58 -0400 (EDT) From: Steve Bernacki <steve@soma.zipnet.net> To: questions@freebsd.org Cc: hackers@freebsd.org Subject: Possible rsh problem? Message-ID: <199608280422.AAA02988@soma.zipnet.net>
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Hey y'all,
I think I might be facing the dreaded rsh problem. I'm running
2.1-STABLE on a host of machines. What follows is a post
I made to comp.lang.perl.misc regarding what I thought was a
perl program, but now seems more like the rsh problem.
Can anyone suggest any workarounds for this? Any help will be
appreciated. The post, which describes exactly what's going
on, follows.
Thanks for any help/input,
-S
--Original Article--
From: steve@zip0.zipnet.net (Steve Bernacki Jr)
Newsgroups: comp.lang.perl.misc
Subject: Rsh and Perl problem in FreeBSD
Date: 27 Aug 1996 20:50:05 GMT
Message-ID: <4vvn1t$3hl@news.zipnet.net>
I really hope someone can shed some light on the following question
because I'm pulling my hair out on it.
I have a daemon running on machine X which accepts connections and
does some processing. Part of this processing includes running a
program (via rsh) to another host, machine Y.
This all works great for a while, and then it suddenly freezes.
When it freezes, the rsh call gets executed on machine Y (I know this
for a fact; the last line in the program mails me.) The program
then terminates on machine Y, but the rsh on machine X is still
going, just hanging there. Here's how I'm calling machine Y:
$result = `/usr/bin/rsh -n -lroot mail /usr/local/sbin/run_dat_code param`;
This works consecutively for about 15 times, then hangs. The daemon
on machine X is actually run from my tty, so it still has a tty
attached. Could this be the problem? The daemon tries to correct
this situation by closing STDIN, STDOUT, and STDERR, but this doesn't
seem to help things.
If this is the problem, how can I lose my controlling terminal in
perl4?
Thanks very much for any ideas/suggestions.
-S
--
Steve Bernacki, Jr. | Administrator of networks and systems
steve@zipnet.net | Zipcall, LLC
My life is a patio of fun!
--Zippy the Pinhead
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