check_ntp offsets

Chris atstake at gmail.com
Wed Aug 19 07:15:47 CEST 2009


On Wed, Aug 19, 2009 at 1:09 PM, Thomas Guyot-Sionnest<dermoth at aei.ca> wrote:
> On 18/08/09 10:13 PM, Onotsky, Steve x55328 wrote:
>>> -----Original Message-----
>>> From: Chris [mailto:atstake at gmail.com]
>>> Sent: August 18, 2009 21:56
>>> To: nagios-users ML
>>> Subject: [Nagios-users] check_ntp offsets
>>>
>>> I am running check_ntp plugin and I have setup an offset threshold of
>>> -w 200 -c 300 but Nagios is still showing "Offset -102.234564 secs"
>>> (Warning)
>>>
>>> Running check_ntp from command line shows NTP OK
>>> (/usr/lib/nagios/plugins/check_ntp -H hostname -w 200 -c 300)
>>>
>>> Output: NTP OK: Offset -102.234564
>>> secs|offset=-102.234564s;200.000000;300.000000;
>>>
>>> Here is what I have added:
>>>
>>> edit /etc/nagios/objetcs/command.cfg and add:
>>>
>>> define command{
>>>         command_name check_ntp
>>>         command_line $USER1$/check_ntp -H $HOSTADDRESS$ -w $ARG1$ -c
>>> $ARG2$
>>> }
>>>
>>> edit /etc/nagios/objetcs/server.cfg and add:
>>>
>>> define service{
>>>         use                             critical-service
>>>         host_name                    hostname
>>>         service_description             NTP
>>>         check_command                   check_ntp!200!300
>>>         }
>>
>> According to your check definition, the result is absolutely correct.
>> You asked it to warn you if the offset is more than 200 seconds, and go
>> critical if over 300 seconds.
>>
>> What you were probably hoping for were thresholds in milliseconds.  In
>> that case, you'll want to set -w and -c to fractional values ("-w 0.2 -c
>> 0.3", or whatever values you actually want as thresholds).
>
> The offset and thresholds are both in seconds:
>
> $ ./check_ntp -H pool.ntp.org -w 0.001 -c 0.01
> NTP WARNING: Offset 0.008824706078 secs |offset=0.008825s;0.001000;0.010000;
>

I have tried all the suggestions but still a no go.

I still get "offset=-105.293049s;60.000000;120.000000;"
and "Offset -105.293049 secs"

check_ntp is from the latest plugins version - 1.4.13.

I have put the absolute path /usr/lib/nagios/plugins/check_ntp instead
of the $USER1$ variable.

I have put "-w 0.2 -c 0.3" - no luck.

Thanks.

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