[ale] load issue

[Jerry Yu]

for sshd debugging, run sshd in debug & verbose mode. 'ltrace' sshd if necessary

On 6/23/06, Tim Meanor <timothy at meanor.net> wrote:
> Have you checked for zombies or lots of processes in the run queue?
> (Top should show you all of those).  Any swapping going on?  Where
> are you ssh'ing from?  Behind the firewall or is the firewall between
> you and the system?  Check the log file /var/log/secure for any
> messages from sshd that might hint as to why ssh is hanging.
>
> -Tim
>
> On Jun 22, 2006, at 9:31 PM, David Corbin wrote:
>
> > On Wednesday 21 June 2006 07:49 pm, David Corbin wrote:
> >> I have box that is getting "loads" in the 4-5 range, but when I
> >> run top,
> >> it's 97.5% idle, and there are not 5 jobs that list a %CPU > 0.0.
> >>
> >> When I login to the box, it's very responsive.  But, when I ssh to
> >> it, I
> >> never get any response.  It doesn't fail, just hangs.
> >>
> >> This box is inside my firewall, so while it's possibly that it's been
> >> hacked, I think it "not likely" (and I certainly hope it hasn't
> >> been).
> >
> > Update:
> >
> > In addition to ssh not working, it doesn't seem to respond well to
> > DNS queries
> > (which it normally does).  But, networking in general seems to be
> > working.
> >
> > I rebooted the system, and with an hour LA had hit 4 again.  This
> > system
> > really doesn't do anything, so theres just no reason for it's LA
> > (1, 5, 15)
> > to be 4, though it didn't seem to jump 4 right after boot, but
> > crept up.
> >
> > More ideas?
> > David
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>
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