Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 3 Feb 2003 16:04:48 -0500 (EST) | From | Bill Davidsen <> | Subject | Re: [TEST FIX] Re: SSH Hangs in 2.5.59 and 2.5.55 but not 2.4.x, |
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On Mon, 3 Feb 2003, Franz Sirl wrote:
> On 2003-02-02 15:40:33 Bill Davidsen wrote:
> >The problem which I have been seeing with some regularity is not the hang > >you describe (I see that infrequently) but rather a hang after I exit an > >ssh connection. I open several dozen windows at a time to a cluster when I > >do admin, and when I close almost always at least one doesn't drop without > >"~." to help. So far in a hour I haven't seen that. > > That's some internal problem in OpenSSH, can be seen on Solaris as well. > Can be easily reproduced in a ssh session: > > nohup sleep 60 & > logout > > The ssh session will terminate only after the sleep exited.
That is a problem with processes left running. I do not forward connections, I do not forward X, I do not (in normal practice) leave anything running. A typical thing to do is to go to each machine in a cluster and look for a user activity: grep "user" log/stats.readers exit nothing more. And every once in a while that hangs after executing the logout sequence. With the patch it hasn't to date.
That doesn't mean it's a fix, I don't see it every day, I just haven't seen it in a few days since I put in the patch.
-- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979.
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