[ntp:questions] NTP client: Sudden time steps on Linux machines

Heiko Gerstung heiko.removethistext.gerstung at meinberg.de
Thu May 3 08:24:58 UTC 2007

Harlan Stenn schrieb:
>>>> In article <epfmg4-bg6.ln1 at gateway.py.meinberg.de>, Heiko Gerstung <heiko_removeme_.gerstung at meinberg.de> writes:
> Heiko> Hi Folks, I have a problem on a NTP client, it seems to face sudden
> Heiko> timesteps and I currently do not have any good explanation for this.
> Heiko> (NTP Version is ntpd 4.1.2 at 1.892)
> Heiko> This happens on a few machines running in a classified network and I
> Heiko> am not sure if it will be possible to update the NTP on these
> Heiko> machines. I just wanted to know if one of you ever came across such a
> Heiko> behavior or what good (or not so good) reasons could cause this.
> What OS?  What does 'ntpq -p' look like?  Can they run something like munin
> to graph some of the ntp variables?

They run on Linux (Redhat stoneage, Kernel 2.4.21). It would be possible 
to graph a number of variables. Any wishes?

"ntpq -p" at which point in time? I will try to get an "ntpq -p" output 
right before, during and after the time offset occurs...

Best Regards,

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