[Nagios-users] checking service once a day
Hello.
I want to check a service only once a day. So I tried this configuration:
define timeperiod {
timeperiod_name once-a-day
alias On mornings
monday 08:00-08:30
tuesday 08:00-08:30
wednesday 08:00-08:30
thursday08:00-08:30
friday 08:00-08:30
saturday08:00-08:30
sunday 08:00-08:30
}
define service {
use generic-service
check_periodonce-a-day
normal_check_interval 1440; 24 hours
...
}
Now when I check the service's next schedule time, Nagios is still
showing that the next check is scheduled to 24h after the previous check
and at 22:53 (pm). Restarting Nagios does not change that. Any tips for
what's wrong in the configuration?
--
Silver
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Re: [Nagios-users] checking service once a day
On 12 August 2011 08:36, Silver Salonen wrote:
> Hello.
>
> I want to check a service only once a day. So I tried this configuration:
>
> define timeperiod {
> timeperiod_name once-a-day
> alias On mornings
> monday 08:00-08:30
> tuesday 08:00-08:30
> wednesday 08:00-08:30
> thursday 08:00-08:30
> friday 08:00-08:30
> saturday 08:00-08:30
> sunday 08:00-08:30
> }
>
> define service {
> use generic-service
> check_period once-a-day
> normal_check_interval 1440 ; 24 hours
> ...
> }
>
> Now when I check the service's next schedule time, Nagios is still
> showing that the next check is scheduled to 24h after the previous check
> and at 22:53 (pm). Restarting Nagios does not change that. Any tips for
> what's wrong in the configuration?
If Nagios wants to schedule a check at a certain time, but it's not in
the timeperiod then it won't run it.
If you don't mind what time of day your check is run, then use the
standard 24x7 timeperiod.
If you want a check to run at a specific time of day, you need to run
it from cron so it submits the check result to Nagios as a passive
check.
http://nagios.sourceforge.net/docs/nagioscore/3/en/passivechecks.html
Alternatively, if you don't mind your check being run a couple of
times each day, I would think you could leave your config as it is,
but set the normal_check_interval to 12 (minutes) or so to give it a
good chance of being scheduled within your 30-minute window.
Personally I would use cron, but it can be a bit fiddly to set up the
first time you try it.
hth,
Jim
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Re: [Nagios-users] checking service once a day
On 12.08.2011 11:25, Jim Avery wrote:
On 12 August 2011 08:36, Silver Salonen wrote:
Hello.
I want to check a service only once a day. So I tried this configuration:
define timeperiod {
timeperiod_name once-a-day
alias On mornings
monday 08:00-08:30
tuesday 08:00-08:30
wednesday 08:00-08:30
thursday08:00-08:30
friday 08:00-08:30
saturday08:00-08:30
sunday 08:00-08:30
}
define service {
use generic-service
check_periodonce-a-day
normal_check_interval 1440; 24 hours
...
}
Now when I check the service's next schedule time, Nagios is still
showing that the next check is scheduled to 24h after the previous check
and at 22:53 (pm). Restarting Nagios does not change that. Any tips for
what's wrong in the configuration?
If Nagios wants to schedule a check at a certain time, but it's not in
the timeperiod then it won't run it.
That's interesting. Documentation says:
Specifying a timeperiod in the/check_period/directive allows you to
restrict the time that Nagios perform regularly scheduled, active checks
of the host or service. When Nagios attempts to reschedule a host or
service check, it will make sure that the next check falls within a
valid time range within the defined timeperiod. If it doesn't, Nagios
will adjust the next check time to coincide with the next "valid" time
in the specified timeperiod.
So I guess documentation is wrong then?
If you don't mind what time of day your check is run, then use the
standard 24x7 timeperiod.
If you want a check to run at a specific time of day, you need to run
it from cron so it submits the check result to Nagios as a passive
check.
http://nagios.sourceforge.net/docs/nagioscore/3/en/passivechecks.html
Alternatively, if you don't mind your check being run a couple of
times each day, I would think you could leave your config as it is,
but set the normal_check_interval to 12 (minutes) or so to give it a
good chance of being scheduled within your 30-minute window.
Personally I would use cron, but it can be a bit fiddly to set up the
first time you try it.
OK, I guess I'd have to go with the passive checks through crontab then
(because I do mind what time the checks are run).
--
Silver
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Re: [Nagios-users] checking service once a day
On 12 August 2011 10:37, Silver Salonen wrote: > So I guess documentation is wrong then? That's what I would think, yes. I don't think what Nagios does is anything like as clever as the documentation would imply, although for checks with small check_interval values it might seem like it is. Having said that, I've not dared to attempt reading the source code myself! -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] checking service once a day
On 12.08.2011 12:37, Silver Salonen wrote:
On 12.08.2011 11:25, Jim Avery wrote:
On 12 August 2011 08:36, Silver Salonen wrote:
Hello.
I want to check a service only once a day. So I tried this configuration:
define timeperiod {
timeperiod_name once-a-day
alias On mornings
monday 08:00-08:30
tuesday 08:00-08:30
wednesday 08:00-08:30
thursday08:00-08:30
friday 08:00-08:30
saturday08:00-08:30
sunday 08:00-08:30
}
define service {
use generic-service
check_periodonce-a-day
normal_check_interval 1440; 24 hours
...
}
Now when I check the service's next schedule time, Nagios is still
showing that the next check is scheduled to 24h after the previous check
and at 22:53 (pm). Restarting Nagios does not change that. Any tips for
what's wrong in the configuration?
If Nagios wants to schedule a check at a certain time, but it's not in
the timeperiod then it won't run it.
That's interesting. Documentation says:
Specifying a timeperiod in the/check_period/directive allows you to
restrict the time that Nagios perform regularly scheduled, active
checks of the host or service. When Nagios attempts to reschedule a
host or service check, it will make sure that the next check falls
within a valid time range within the defined timeperiod. If it
doesn't, Nagios will adjust the next check time to coincide with the
next "valid" time in the specified timeperiod.
So I guess documentation is wrong then?
If you don't mind what time of day your check is run, then use the
standard 24x7 timeperiod.
If you want a check to run at a specific time of day, you need to run
it from cron so it submits the check result to Nagios as a passive
check.
http://nagios.sourceforge.net/docs/nagioscore/3/en/passivechecks.html
Alternatively, if you don't mind your check being run a couple of
times each day, I would think you could leave your config as it is,
but set the normal_check_interval to 12 (minutes) or so to give it a
good chance of being scheduled within your 30-minute window.
Personally I would use cron, but it can be a bit fiddly to set up the
first time you try it.
OK, I guess I'd have to go with the passive checks through crontab
then (because I do mind what time the checks are run).
Ah yes, previously I just restarted Nagios every day (from crontab) so
that the checks would be re-scheduled, but in the new installation
Nagios does not re-schedule the checks on startup. Is there an option
for that? I don't seem to find it...
--
Silver
--
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Re: [Nagios-users] checking service once a day
On 12 August 2011 15:03, Silver Salonen wrote: > Ah yes, previously I just restarted Nagios every day (from crontab) so that > the checks would be re-scheduled, but in the new installation Nagios does > not re-schedule the checks on startup. Is there an option for that? I don't > seem to find it... It's been a while since I've played with any of those options myself. I think you'll find it's this directive in nagios.cfg which controls whether Nagios re-schedules checks on startup .. # USE RETAINED SCHEDULING INFO # This setting determines whether or not Nagios will retain # the scheduling info (next check time) for hosts and services # based on the values saved in the retention file. If you # If you want to use retained scheduling info, set this # value to 1. If not, set this value to 0. use_retained_scheduling_info=1 Cheers, Jim -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] checking service once a day
Silver Salonen wrote:
> On 12.08.2011 12:37, Silver Salonen wrote:
>> On 12.08.2011 11:25, Jim Avery wrote:
>>> On 12 August 2011 08:36, Silver Salonen wrote:
>>>
Hello.
I want to check a service only once a day. So I tried this configuration:
define timeperiod {
timeperiod_name once-a-day
alias On mornings
monday 08:00-08:30
tuesday 08:00-08:30
wednesday 08:00-08:30
thursday08:00-08:30
friday 08:00-08:30
saturday08:00-08:30
sunday 08:00-08:30
}
define service {
use generic-service
check_periodonce-a-day
normal_check_interval 1440; 24 hours
...
}
Do you need the check to run between 8-8:30, or just every 24 hours?
Your check_interval will not exceed the maximum check spread that's in
the main nagios.cfg file. I would try either setting the timeperiod for
the check *or* setting the wide check interval.
Now when I check the service's next schedule time, Nagios is still
showing that the next check is scheduled to 24h after the previous check
and at 22:53 (pm). Restarting Nagios does not change that. Any tips for
what's wrong in the configuration?
>>> If Nagios wants to schedule a check at a certain time, but it's not in
>>> the timeperiod then it won't run it.
>>
>> That's interesting. Documentation says:
>>
>> Specifying a timeperiod in the /check_period/ directive allows you to
>> restrict the time that Nagios perform regularly scheduled, active
>> checks of the host or service. When Nagios attempts to reschedule a
>> host or service check, it will make sure that the next check falls
>> within a valid time range within the defined timeperiod. If it
>> doesn't, Nagios will adjust the next check time to coincide with the
>> next "valid" time in the specified timeperiod.
>>
>> So I guess documentation is wrong then?
>>
>>> If you don't mind what time of day your check is run, then use the
>>> standard 24x7 timeperiod.
>>>
>>> If you want a check to run at a specific time of day, you need to run
>>> it from cron so it submits the check result to Nagios as a passive
>>> check.
>>>
>>> http://nagios.sourceforge.net/docs/nagioscore/3/en/passivechecks.html
>>>
>>> Alternatively, if you don't mind your check being run a couple of
>>> times each day, I would think you could leave your config as it is,
>>> but set the normal_check_interval to 12 (minutes) or so to give it a
>>> good chance of being scheduled within your 30-minute window.
>>> Personally I would use cron, but it can be a bit fiddly to set up the
>>> first time you try it.
>>>
>>
>> OK, I guess I'd have to go with the passive checks through crontab
>> then (because I do mind what time the checks are run).
>>
> Ah yes, previously I just restarted Nagios every day (from crontab) so
> that the checks would be re-scheduled, but in the new installation
> Nagios does not re-schedule the checks on startup. Is there an option
> for that? I don't seem to find it...
>
> --
> Silver
>
>
> --
> Get a FREE DOWNLOAD! and learn more about uberSVN rich system,
> user administration capabilities and model configuration. Take
> the hassle out of deploying and managing Subversion and the
> tools developers use with it.
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>
>
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Re: [Nagios-users] checking service once a day
On 12.08.2011 17:48, Jim Avery wrote: > On 12 August 2011 15:03, Silver Salonen wrote: > >> Ah yes, previously I just restarted Nagios every day (from crontab) so that >> the checks would be re-scheduled, but in the new installation Nagios does >> not re-schedule the checks on startup. Is there an option for that? I don't >> seem to find it... > > It's been a while since I've played with any of those options myself. > I think you'll find it's this directive in nagios.cfg which controls > whether Nagios re-schedules checks on startup .. > > # USE RETAINED SCHEDULING INFO > # This setting determines whether or not Nagios will retain > # the scheduling info (next check time) for hosts and services > # based on the values saved in the retention file. If you > # If you want to use retained scheduling info, set this > # value to 1. If not, set this value to 0. > > use_retained_scheduling_info=1 > > > Cheers, > > Jim Thank you very much, Jim! After setting this option to 0, the next check is now scheduled to tomorrow 8:00 which is exactly what I want :) So I guess the smartness of Nagios' scheduling (and whether it follows time period restrictions) is dependent on this option. -- Silver -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] checking service once a day
On 12.08.2011 17:54, Mike Guthrie wrote:
> Silver Salonen wrote:
>> On 12.08.2011 12:37, Silver Salonen wrote:
>>> On 12.08.2011 11:25, Jim Avery wrote:
On 12 August 2011 08:36, Silver Salonen wrote:
> Hello.
>
> I want to check a service only once a day. So I tried this configuration:
>
> define timeperiod {
> timeperiod_name once-a-day
> alias On mornings
> monday 08:00-08:30
> tuesday 08:00-08:30
> wednesday 08:00-08:30
> thursday08:00-08:30
> friday 08:00-08:30
> saturday08:00-08:30
> sunday 08:00-08:30
> }
>
> define service {
> use generic-service
> check_periodonce-a-day
> normal_check_interval 1440; 24 hours
> ...
> }
>
> Do you need the check to run between 8-8:30, or just every 24 hours?
> Your check_interval will not exceed the maximum check spread that's in
> the main nagios.cfg file. I would try either setting the timeperiod for
> the check *or* setting the wide check interval.
Yes, I wanted the checks to be run between 8:00 and 8:30. But as I
woohooed in the previous e-mail, it seems I got it working :)
--
Silver
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Re: [Nagios-users] checking service once a day
- Original Message -
From: Silver Salonen
To: nagios-users@lists.sourceforge.net
Sent: Fri Aug 12 10:09:37 2011
Subject: Re: [Nagios-users] checking service once a day
On 12.08.2011 17:54, Mike Guthrie wrote:
> Silver Salonen wrote:
>> On 12.08.2011 12:37, Silver Salonen wrote:
>>> On 12.08.2011 11:25, Jim Avery wrote:
>>>> On 12 August 2011 08:36, Silver Salonen wrote:
>>>>
>>>>> Hello.
>>>>>
>>>>> I want to check a service only once a day. So I tried this configuration:
>>>>>
>>>>> define timeperiod {
>>>>> timeperiod_name once-a-day
>>>>> alias On mornings
>>>>> monday 08:00-08:30
>>>>> tuesday 08:00-08:30
>>>>> wednesday 08:00-08:30
>>>>> thursday08:00-08:30
>>>>> friday 08:00-08:30
>>>>> saturday08:00-08:30
>>>>> sunday 08:00-08:30
>>>>> }
>>>>>
>>>>> define service {
>>>>> use generic-service
>>>>> check_periodonce-a-day
>>>>> normal_check_interval 1440; 24 hours
>>>>> ...
>>>>> }
>>>>>
> Do you need the check to run between 8-8:30, or just every 24 hours?
> Your check_interval will not exceed the maximum check spread that's in
> the main nagios.cfg file. I would try either setting the timeperiod for
> the check *or* setting the wide check interval.
Yes, I wanted the checks to be run between 8:00 and 8:30. But as I
woohooed in the previous e-mail, it seems I got it working :)
--
Silver
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