Page 1 of 2
Notification_Interval query
Posted: Thu Sep 17, 2015 6:19 am
by neworderfac33
Good afternoon,
Although I have this in my templates.cfg:
Code: Select all
define host{
name windows-server ; The name of this host template
use generic-host ; Inherit default values from the generic-host template
check_period 24x7 ; by default, Windows servers are monitored round the clock
check_interval 5 ; Actively check the server every 5 minutes
retry_interval 1 ; Schedule host check retries at 1 minute intervals
max_check_attempts 10 ; Check each server 10 times (max)
check_command check-host-alive; Default command to check if servers are "alive"
notification_period 24x7 ; Sends notifications out at any time - day or night
notification_options d,r
notification_interval 0 ; Minutes or 0 Only send the FIRST notification
contact_groups admins ; Notifications get sent to the admins by default
hostgroups windows-servers ; Host groups that Windows servers should be a member of
register 0 ; DONT REGISTER THIS - ITS JUST A TEMPLATE
}
I am receiving email notifcations every 60 minutes!
[Edit] I think I might just have answered my own question - do I need to add Notification_Interval = 0 into generic_host as well?
Code: Select all
define host{
name generic-host ; The name of this host template
notifications_enabled 1 ; Host notifications are enabled
event_handler_enabled 1 ; Host event handler is enabled
flap_detection_enabled 1 ; Flap detection is enabled
process_perf_data 1 ; Process performance data
retain_status_information 1 ; Retain status information across program restarts
retain_nonstatus_information 1 ; Retain non-status information across program restarts
notification_period 24x7 ; Send host notifications at any time
notification_interval 0
register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}
[Edit] I set Notification_Interval to 0 in generic host as well and I'm STILL getting notifications every 60 minutes!
Thanks in advance
Pete
Re: Notification_Interval query
Posted: Thu Sep 17, 2015 10:20 am
by neworderfac33
Changed the interval to 5 and it alerted every 5 minutes.
Then set it to ten and it alerted every 10 minutes.
I've just set it back to 0 and I'm waiting to see if it goes back to alerting every 60! I'll know in just under an hour!
Pete
Re: Notification_Interval query
Posted: Thu Sep 17, 2015 10:48 am
by jdalrymple
peterooney wrote:do I need to add Notification_Interval = 0 into generic_host as well?
No, the way template directives stack - the ones closest to the end definition are the effective ones. This doesn't really explain your behavior - are you sure it's a host notification that you're receiving every 60 minutes? You don't have any escalations set up or anything else?
Re: Notification_Interval query
Posted: Thu Sep 17, 2015 11:17 am
by neworderfac33
No, I don't have anything like that set up - and the bad news is, an hour has passed with Notification_Interval set to 0 and the notifications have just started flooding in again!
They're a mixture of disk space, application and service alerts, plus one to report the version of NSClient++
I was hoping that the act of changing the Notification_Interval a couple of times might have flushed the error out. It was OK with 5 minutes and 10 minutes, but setting it to 0 has started the alerts are coming at 60 minute intervals again.
I'm going to set it to 360 minutes before I finish for the day and see how that looks in the morning.
Thanks
Pete
Re: Notification_Interval query
Posted: Thu Sep 17, 2015 11:32 am
by jdalrymple
peterooney wrote:They're a mixture of disk space, application and service alerts, plus one to report the version of NSClient++
These are service notifications and you're messing about with your host definition. While there is implied inheritance, I suggest you start by fixing it at the service, then if we can figure that out, move on to trying to make implied inheritance work as you expect.
Re: Notification_Interval query
Posted: Fri Sep 18, 2015 3:17 am
by neworderfac33
You put me on the right track with your suggestion! Notification_Interval for "generic-service" was set to 60! Doh!
Something else I've learned after a couple of sleepless nights - thank you very much!
Pete
Re: Notification_Interval query
Posted: Fri Sep 18, 2015 7:27 am
by jdalrymple
Problem solved?
The bit I was talking about implied inheritence... in case you care -
about 2/3 of the way down.
OK to mark solved and lock?
Re: Notification_Interval query
Posted: Fri Sep 18, 2015 10:18 am
by neworderfac33
Well no, not just yet...
If I set Notification_Interval to 10 or 20 for example in
Code: Select all
define service{
name generic-service ; The 'name' of this service template
active_checks_enabled 1 ; Active service checks are enabled
passive_checks_enabled 1 ; Passive service checks are enabled/accepted
parallelize_check 1 ; Active service checks should be parallelized (disabling this can lead to major performance problems)
obsess_over_service 1 ; We should obsess over this service (if necessary)
check_freshness 0 ; Default is to NOT check service 'freshness'
notifications_enabled 1 ; Service notifications are enabled
event_handler_enabled 1 ; Service event handler is enabled
flap_detection_enabled 1 ; Flap detection is enabled
process_perf_data 1 ; Process performance data
retain_status_information 1 ; Retain status information across program restarts
retain_nonstatus_information 1 ; Retain non-status information across program restarts
is_volatile 0 ; The service is not volatile
check_period 24x7 ; The service can be checked at any time of the day
max_check_attempts 3 ; Re-check the service up to 3 times in order to determine its final (hard) state
normal_check_interval 5 ; Check the service every 5 minutes under normal conditions
retry_check_interval 2 ; Re-check the service every two minutes until a hard state can be determined
contact_groups admins ; Notifications get sent out to everyone in the 'admins' group
notification_options w,u,c,r ; Send notifications about warning, unknown, critical, and recovery events
notification_interval 0 ; Re-notify about service problems every hour
notification_period 24x7 ; Notifications can be sent out at any time
register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
}
the emails are sent out at the correct interval.
When I set it to 0, they still come out every 60 minutes.
I'm going to try a few things - can you leave it open for the time being, please?
Pete
Re: Notification_Interval query
Posted: Fri Sep 18, 2015 11:34 am
by jdalrymple
You betcha. I wonder if setting it to 0 in a nagios service is interpreted as NULL under the hood... if that were the case that inheritance stuff would take over.
Re: Notification_Interval query
Posted: Tue Sep 22, 2015 5:29 am
by neworderfac33
Good morning, the puzzle is that if I specify CERTAIN notification intervals such as 15, 20, 30 etc, they they work correctly, indicating that it Nagios isn't inheriting its interval value from somewhere else.
The problem is, when I set it to 0, I can't for the life of me figure out how it's reverting to 60.
Is there a maximum value - can I set it to something silly like 1440 (24 hours)?
I'll keep trying.
Pete