macros fail in mail notification

[rbozdog]

Hi

I have the following issue when receiving mail notifications n Nagios core 4.4.3.

The mail content:

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***** Nagios *****

Notification Type: CUSTOM

Service: $ 
Host: HOST ALIAS
Address: 0.0.0.0(IS AN EXAMPLE)
State: $

Date/Time: Tue Feb 19 20:48:05 EET 2019

Additional Info:

$

The subject:

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** CUSTOM Service Alert: HOST ALIAS/$ is $ **

As you can see the macros are returning just a $ not the value.

The command line is:

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/usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mailx -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$

The command line for the HOST notifications is the same (the default one) and it's working, just for the services is doing this.

Thank you in advance!

[lmiltchev]

Can you show us the actual service definition?

[rbozdog]

These are my service definitions:

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define service {

    use                     generic-service                     
    hostgroup_name          conn-main
    servicegroups	    main-service
    service_description     PING
    check_command           check_ping!200.0,20%!600.0,60%
    max_check_attempts      5
    check_interval          5
    retry_interval          1
    notifications_enabled   1

}

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define service {

    use                          generic-service
    hostgroup_name               port24
    servicegroups	         switch-service
    service_description          PORT24
    check_command                check_snmp!-C NMM -o ifOperStatus.10024 -r 1 -m RFC1213-MIB
    notifications_enabled        1
    notification_period          24x7
    notification_options         c,r
    notification_interval        960
    max_check_attempts           5
    check_interval               5
    retry_interval               1
    contact_groups      	 admins
    notifications_enabled        1
}

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define service {

    use                          generic-service
    hostgroup_name               ups
    servicegroups	         ups-service
    service_description          Main Battery Status
    check_command                snmp_ups_stat!NMM
    notifications_enabled        1
    notification_period          24x7
    notification_options         c,r
    notification_interval        960
    max_check_attempts           5
    check_interval               5
    retry_interval               1
    contact_groups      	 admins
    notifications_enabled        1
}

[lmiltchev]

We need some more information. Who is the contact that is having issues with notifications (macros not resolving)? Is he/she a member of the "admins" contact group or is added to the "generic-service" template? We need to see this contact's config. It is possible that the service notification handler (notify-service-by-email) is set as both - host and service notification command. In this case, if you had a host notification, the output would be messed up, and the macros wouldn't resolve (e.g. $SERVICEDESC$ and $SERVICESTATE$ wouldn't exist).

You could also enable debugging in the nagios.cfg file and set the debug_level=2048. Create a condition that is going to bring a "test" service to a hard CRITICAL state. Post the actual email notification that you receive and the /usr/local/nagios/var/nagios.debug file on the forum.

[rbozdog]

All the contacts are having this issue, but this the contacts definition:

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define contact {

    contact_name            	     rbozdog
    use                     	     generic-contact
    alias                            Rares Bozdog
    service_notification_period      24x7
    host_notification_period         24x7
    service_notification_options     c,r
    host_notification_options        d,r
    service_notification_commands    notify-host-by-email
    host_notification_commands       notify-service-by-email
    email                   	     rbozdog@mail.com
}

Also the contact tempate:

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define contact {

    name                            generic-contact         ; The name of this contact template
    service_notification_period     24x7                    ; service notifications can be sent anytime
    host_notification_period        24x7                    ; host notifications can be sent anytime
    service_notification_options    w,u,c,r,f,s             ; send notifications for all service states, flapping events, and scheduled downtime events
    host_notification_options       d,u,r,f,s               ; send notifications for all host states, flapping events, and scheduled downtime events
    service_notification_commands   notify-service-by-email ; send service notifications via email
    host_notification_commands      notify-host-by-email    ; send host notifications via email
    register                        0                       ; DON'T REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE!
}

And the contact groups:

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define contactgroup {

    contactgroup_name       admins
    alias                   Nagios Administrators
    members                 rbozdog
}

For every state is this problem so I sent a costum notification:

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[1550679657.801291] [2048.1] [pid=28645] **** BEGIN MACRO PROCESSING ***********
[1550679657.801298] [2048.1] [pid=28645] Processing: 'HOST NOTIFICATION: rbozdog;HOSTNAME;CUSTOM ($HOSTSTATE$);notify-service-by-email;$HOSTOUTPUT$;$NOTIFICATIONAUTHOR$;$NOTIFICATIONCOMMENT$
'
[1550679657.801312] [2048.1] [pid=28645]   Done.  Final output: 'HOST NOTIFICATION: rbozdog;HOSTNAME;CUSTOM (UP);notify-service-by-email;PING OK - Packet loss = 0%, RTA = 43.18 ms;RBozdog;test
'
[1550679657.801319] [2048.1] [pid=28645] **** END MACRO PROCESSING *************

The e-mail notification:

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***** Nagios *****

Notification Type: CUSTOM

Service: $
Host: ALIAS
Address: 0.0.0.0
State: $

Date/Time: Wed Feb 20 18:38:43 EET 2019

Additional Info:

$

The e-mail subject:

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** CUSTOM Service Alert: ALIAS/$ is $ **

I can see in the debug that is as you said, the service is processed as a host notification, but what is the solution?

Thank you!

[lmiltchev]

You notifications commands are "switched"...

Change this (in the rbozdog's definition):

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service_notification_commands    notify-host-by-email
host_notification_commands       notify-service-by-email

to this:

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service_notification_commands    notify-service-by-email
host_notification_commands       notify-host-by-email

to see if this is going to fix your issue.

Update: As you said "All the contacts are having this issue, but this...", most probably you have the actual commands "flipped" (switched) as well. Make sure that notify-host-by-email and notify-service-by-email are correctly defined.

Can you show us both notification commands?

[rbozdog]

OMG! Sorry for my mistake... I am so embarrassed.

I was looking for the problem deeper and I didn't saw my stupid mistake.

That was the problem and now is working excellent.

Sorry again for bothering you with my stupid mistake!

Thanks a lot for your support!

[lmiltchev]

I am glad I could help!