double notifications

[sebastiaopburnay]

Hi!

I have a distributed Nagios infrastructure pictured in the attached picture.

My Central Nagios' Server (v 3.3.1) is sending double notifications for some events.

I've taken a deep look into the cfg files and found a 'notification_interval' of 0 (zero - If you set this value to 0, Nagios will not re-notify contacts about problems for this service - only one problem notification will be sent out..)

I also verified that there were no duplicate contacts on the contactgroup associated with these service checks.

Does this issue ring a bell?

Thank you in advance for your time and knowlege.

Best regards,
sebastiaopburnay

[sreinhardt]

Can you show us some config examples of a service that is being forwarded and duplicating notifications? At this point I would say that there are no known bugs that should cause this, and it likely is something with the configs, but let's verify just to be sure!

[sebastiaopburnay]

Can you show us some config examples of a service that is being forwarded and duplicating notifications? At this point I would say that there are no known bugs that should cause this, and it likely is something with the configs, but let's verify just to be sure!

Sure,

So this is my passive service template:

Code: Select all

define service{
        name                            my-passive-service
        active_checks_enabled           0
        passive_checks_enabled          1
        flap_detection_enabled          1
        register                        0
        is_volatile                     0
        check_period                    24x7
        max_check_attempts              1
        check_freshness                 0
        check_command                   check_dummy!0
        notification_interval           0
        notification_period             24x7
        notification_options            w,u,c,r
        }

And my service definition:

Code: Select all

#   Uptime
define service{
        use                             my-passive-service
        host_name                       some_Router    
        service_description             DNV-Uptime
        servicegroups                   some_serviceGroup
        contact_groups                  my-admins
        #check_command                  custom_uptime!some_SNMP_communïtÿ!2 1
}

It seems right to me

[sreinhardt]

So are I would agree, it looks prefectly fine. Could you show the following configs that would apply to this as well:

servicegroups some_serviceGroup
contact_groups my-admins (also contacts for this group please)

[sebastiaopburnay]

So are I would agree, it looks prefectly fine. Could you show the following configs that would apply to this as well:

servicegroups some_serviceGroup

Code: Select all

define servicegroup{
        servicegroup_name       some_serviceGroup
        alias                   my-servicegroup
        notes                   Some textual note
}

contact_groups my-admins (also contacts for this group please)

Code: Select all

define contactgroup{
        contactgroup_name       my-admins
        alias                   my Admins
        members                 my-contact1, my-contact2, my-contact3
        }
define contact{
        contact_name            my-contact1
        use                     my-generic-contact              
        alias                   somealias
        email                   someemail@domain.com
        host_notification_commands      notify-host-by-email-command
        service_notification_commands   notify-service-by-email-command
}
define contact{
        name                            my-generic-contact
        service_notification_period     24x7
        host_notification_period        24x7
        service_notification_options    w,u,c,r,f,s
        host_notification_options       d,u,r,f,s
        service_notification_commands   notify-service-by-email-command
        host_notification_commands      notify-host-by-email-command
        register                        0
}

[tmcdonald]

Where are notify-service-by-email-command and notify-host-by-email-command defined? Those are not the standard command names. Please post the command definitions.

[sebastiaopburnay]

Where are notify-service-by-email-command and notify-host-by-email-command defined? Those are not the standard command names. Please post the command definitions.

Yes it is not a standard notification.

It has been created from a php send-mail script:

Code: Select all

define command{
        command_name    notify-host-by-email-command
        command_line $USER1$/nagios_host_mail "$NOTIFICATIONTYPE$" "$HOSTNAME$" "$HOSTALIAS$" "$HOSTSTATE$" "$HOSTADDRESS$" "$HOSTOUTPUT$" "$LONGDATETIME$" "$SERVICEDESC$" "$SERVICESTATE$" "$CONTACTEMAIL$" "$TOTALHOSTSUP$" "$TOTALHOSTSDOWN$" "0"
		#command_line	$USER1$/blank.sh        
		}

define command{
        command_name    notify-service-by-email-command
        command_line $USER1$/nagios_service_mail "$NOTIFICATIONTYPE$" "$HOSTNAME$" "$HOSTALIAS$" "$HOSTSTATE$" "$HOSTADDRESS$" "$SERVICEOUTPUT$" "$LONGDATETIME$" "$SERVICEDESC$" "$SERVICESTATE$" "$CONTACTEMAIL$" "$SERVICEDURATIONSEC$" "$SERVICEDOWNTIME$" "$TOTALSERVICESWARNING$" "$TOTALSERVICESCRITICAL$" "$TOTALSERVICESUNKNOWN$" "0" 
        #command_line	$USER1$/blank.sh
		}

As you can see, I have a commented line calling a blank shel script (blank.sh), in case I want to disable all notifications.

The script comes from: http://exchange.nagios.org/directory/Pl ... il/details

[slansing]

Can you share the config files for 'my-contact2, my-contact3' as well? I'm wondering if one of them might have two handlers defined together. Also, are you absolutely sure that the duplicate notifications are not due to your main checking server being misconfigured and actually sending some notifications when it should not normally? Are there any differences in the duplicate notifications you get? Could you post them side by side here for reference? Remove all sensitive information if you do.

[sebastiaopburnay]

Those contact definitions are all alike.

The email address changes

[tmcdonald]

Could you please answer the rest of slansing's questions?

Also, are you absolutely sure that the duplicate notifications are not due to your main checking server being misconfigured and actually sending some notifications when it should not normally? Are there any differences in the duplicate notifications you get? Could you post them side by side here for reference? Remove all sensitive information if you do.