SUMMARY: NT4 causes running out of ptys?

From: John Horne (J.Horne@plymouth.ac.uk)
Date: Thu May 20 1999 - 08:03:00 CDT


I received a few replies to this, of which it seemed either to come down to
using a Solaris patch or the way my colleague (Mary) was exiting Exceed. I
checked with her about this and she assures me that she always exists Exceed
and NT correctly (i.e. doesn't just turn off the machine or use the little 'x'
in the top-right corner).

After a few days now though the patch we applied seems to have done the trick
:-) Thanks to Jim McVey <jmcvey@nhgri.nih.gov> for this. The patch is
103846-09.

Thanks also to:
Robert Hill <Robert_Hill@cch.com>
Derek LIPIEC <lipiec@mail.CAS.McMaster.CA>
Cathy L Smith <csmith4@fwhns41.ftw.mot.com>
Darren Brechman-Toussaint <DarrenBT@bne.secmail.com.au>

The original question was:

On 13-May-99 at 09:14:34 John Horne wrote:
> We run a mailhub on an Ultra 1/170 (using exim 2.11; Solaris 2.5.1) with no
> problems. The postmasters could connect to the system using either telnet or
> X Window using Hummingbird Exceed running under Windows 3.11. No problems at
> all with this.
>
> However, one of the postmasters has had her PC upgraded to Windows NT4
> (service pack 4). She has exceed for NT (version 6.1 I think) installed as
> well. We now find the system sometimes will not allow anyone to login due
> to 'No pty's available'. The console is still okay. We can see that there
> are many processes using the 'ptys' and that these seem to stem from her
> previous sessions - i.e. the connection/process is not being shutdown
> correctly and the pty thus released. We can kill off the old processes and
> all is then well (until next time). I ran 'netstat -a' but couldn't see
> anything significant.
>
> I know we could up the number of available ptys on the Sun but fail to
> see why we should since the only change has been this one use of NT. Nothing
> has changed on the Sun. Has anyone else seen this or any ideas if there is
> something we need to configure on the NT box or Sun system to resolve it?
>

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John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914
E-mail: jhorne@plymouth.ac.uk ICQ: 36532881
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