[ntp:questions] Nagios NTP Warnings - All My Servers

karl at klxsystems.net karl at klxsystems.net
Fri Jun 9 20:10:52 UTC 2006


Hi,

All machines talking to my main NTP node are giving errors back to the
Nagios check_ntp command.

What's the best way to troubleshoot this?  Any useful commands?

--
Here are some of the warnings from the pool of servers I have running:

NTP WARNING: Offset 5.549596 sec > +/- 2 sec, jitter 9.111 msec
NTP WARNING: Offset 5.560099 sec > +/- 2 sec, jitter 9.534 msec
NTP WARNING: Offset 5.596052 sec > +/- 2 sec, jitter 10.068 msec

When I run ntpq -p I get:
/usr/sbin/ntpq -p

remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*toshi.keneli.or .GPS.            1 u   63   64  377   87.424    7.085  
1.970
+dankulp.com     ntp2-ext.schlun  3 u    2   64  377   81.263    9.698  
0.630
+mx11.wtfo-guru. ntp-1.cns.vt.ed  3 u   80   64  376   77.466    8.761  
0.163


And when I run /usr/sbin/ntpdc -c kerninfo:  I get:
pll offset:           0.007944 s
pll frequency:        4.733 ppm
maximum error:        0.074316 s
estimated error:      0.001374 s
status:               0001  pll
pll time constant:    2
precision:            1e-06 s
frequency tolerance:  512 ppm
pps frequency:        0.000 ppm
pps stability:        512.000 ppm
pps jitter:           0.0002 s
calibration interval: 4 s
calibration cycles:   0
jitter exceeded:      0
stability exceeded:   0
calibration errors:   0

When I view my /var/log/messages I see:
Jun 9 11:37:53 myhost ntpd[17964]:kernel time discipline status change 41

Jun 9 11:40:01 myhost ntpd[17964]:kernel time discipline status change 1

Any suggestions?

-karlski







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