check_ntp offsets

[Thomas Guyot-Sionnest]

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On 19/08/09 01:15 AM, Chris wrote:
> 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"

According to that result above you're using the default thresholds
(60.000000;120.000000), meaning that you're not passing the arguments
correctly.

Verify your definitions (especially look for typos - you may have two
very-similar "check_ntp" commands defined), or use the echo trick to see
which what command you're actually running. Use:

command_line echo $USER1$/check_ntp -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$

This will skip the check and print the command that normally runs instead.

- --
Thomas
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