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Oracle Linux: Missing Parameter Kernel Under System Flags in 'ntpdc' Command (Doc ID 2604450.1)

Last updated on FEBRUARY 26, 2020

Applies to:

Linux OS - Version Oracle Linux 7.5 with Unbreakable Enterprise Kernel [4.1.12] and later
Linux x86-64
Linux x86

Symptoms

Multiple servers report time difference with hardware clock and system's time that uses NTP as clock source.
Systems date and hardware clock output shows the time delay or not in synchronization status.

The output of "ntpdc -c sysinfo" shows missing "kernel" parameter under "system flags"
ntpdc output:
Issue Server:
# ntpdc -c sysinfo
system peer: **************
system peer mode: client
leap indicator: 00
stratum: 6
precision: -24
root distance: 0.10782 s
root dispersion: 0.94182 s
reference ID: [*.*.*.*]
reference time: e0bf11a9.d3437000 Thu, Jun 27 2019 12:58:01.825
system flags: auth ntp stats <<<<<<<<<<<<<<<<<<<<<<<<<<<< Parameter "kernel" is missing
jitter: 0.326767 s
stability: 0.000 ppm
broadcastdelay: 0.000000 s
authdelay: 0.000000 s
Working Server:
# ntpdc -c sysinfo
system peer: **************
system peer mode: client
leap indicator: 00
stratum: 6
precision: -24
root distance: 0.10782 s
root dispersion: 0.94182 s
reference ID: [*.*.*.*]
reference time: e0bf11a9.d3437000 Thu, Jun 27 2019 12:58:01.825
system flags: auth ntp kernel stats <<<<<<<<<<<<<<<<<<<<<<<<<<<< Parameter "kernel" available
jitter: 0.326767 s
stability: 0.000 ppm
broadcastdelay: 0.000000 s
authdelay: 0.000000 s

Time Difference:

Issue Server1:
# hwclock
Wed 17 Jul 2019 05:06:30 PM MSK -0.116138 seconds
# date
Wed Jul 17 17:05:38 MSK 2019
Issue Server1:
# hwclock
Wed 17 Jul 2019 05:07:31 PM MSK -0.897513 seconds
# date
Wed Jul 17 17:06:11 MSK 2019
Working Server:
# sudo hwclock
Wed 17 Jul 2019 05:08:40 PM MSK -0.359914 seconds
# date
Wed Jul 17 17:08:42 MSK 2019

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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