Duplicate alert emails.

[vinothsethuram]

Hi

I'm getting lot of alert emails for host and services (lot of duplicate emails ). My exceptions are

- Notification email that it came back up
- Or notification email after 60 minutes that it is still down.


In Nagios.cfg, interval_length is 60 .

Here is the templates.cfg values

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 Time _Period ; 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 10 minutes under normal conditions
retry_check_interval 1 ; 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 60 ; Re-notify about service problems every hour
notification_period Time _Period ; Notifications can be sent out at any time


Please help


Regards
Vinoth

[slansing]

Can you share the contact definition for one of your contacts?

[vinothsethuram]

define contact{
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user

email xzy@ab.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
}


define contactgroup{
contactgroup_name admin
alias Administrators
members nagiosadmin
}

[slansing]

Sorry I meant can you share your nagiosadmin contact template definition? Please block out the addresses.

Edit: Apologies, I posted the above reply before I changed it, please share the template as well..

[vinothsethuram]

I hope I shared the nagiosadmin contact definition in last post.

[slansing]

I must have edited my last post after you replied, can you share the template so we can see the handler commands? Also, can you go into more detail on the duplicates you are receiving? Are they exact duplicates or are they just state changes that appear to be duplicates?

[vinothsethuram]

My exceptions are

- Notification email that it came back up
- Or notification email after 60 minutes that it is still down.

But receiving lot of emails for same issue with same state. I'm using generic-service and generic-host


# Generic contact definition template - This is NOT a real contact, just a template!

Code: Select all

define contact{
        name                            generic-contact         ; The name of this contact template
        service_notification_period     Staples_Time _Period                    ; service notifications can be sent anytime
        host_notification_period        Staples_Time _Period                    ; 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                       ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE!
        }

# Generic host definition template - This is NOT a real host, just a template!

Code: Select all

define host{

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
        register                        0               ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
        }

# Linux host definition template - This is NOT a real host, just a template!

Code: Select all

define host{
        name                            linux-server    ; The name of this host template
        use                             generic-host    ; This template inherits other values from the generic-host template
        check_period                    24x7            ; By default, Linux hosts are checked round the clock
        check_interval                  5               ; Actively check the host every 5 minutes
        retry_interval                  1               ; Schedule host check retries at 1 minute intervals
        max_check_attempts              10              ; Check each Linux host 10 times (max)
        check_command                   check-host-alive ; Default command to check Linux hosts
        notification_period             workhours       ; Linux admins hate to be woken up, so we only notify during the day
                                                        ; Note that the notification_period variable is being overridden from
                                                        ; the value that is inherited from the generic-host template!
        notification_interval           120             ; Resend notifications every 2 hours
        notification_options            d,u,r           ; Only send notifications for specific host states
        contact_groups                  admins          ; Notifications get sent to the admins by default
        register                        0               ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
        }

# Windows host definition template - This is NOT a real host, just a template!

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            ; Send notification out at any time - day or night
        notification_interval   30              ; Resend notifications every 30 minutes
        notification_options    d,r             ; Only send notifications for specific host states
        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
        }
 register                0               ; DONT REGISTER THIS - ITS JUST A TEMPLATE
        }

# We define a generic printer template that can be used for most printers we monitor

Code: Select all

define host{
        name                    generic-printer ; The name of this host template
        use                     generic-host    ; Inherit default values from the generic-host template
        check_period            24x7            ; By default, printers are monitored round the clock
        check_interval          5               ; Actively check the printer every 5 minutes
        retry_interval          1               ; Schedule host check retries at 1 minute intervals
        max_check_attempts      10              ; Check each printer 10 times (max)
        check_command           check-host-alive        ; Default command to check if printers are "alive"
        notification_period     workhours               ; Printers are only used during the workday
        notification_interval   30              ; Resend notifications every 30 minutes
        notification_options    d,r             ; Only send notifications for specific host states
        contact_groups          admins          ; Notifications get sent to the admins by default
        register                0               ; DONT REGISTER THIS - ITS JUST A TEMPLATE
        }

# Define a template for switches that we can reuse

Code: Select all

define host{
        name                    generic-switch  ; The name of this host template
        use                     generic-host    ; Inherit default values from the generic-host template
        check_period            24x7            ; By default, switches are monitored round the clock
        check_interval          5               ; Switches are checked every 5 minutes
        retry_interval          1               ; Schedule host check retries at 1 minute intervals
        max_check_attempts      10              ; Check each switch 10 times (max)
        check_command           check-host-alive        ; Default command to check if routers are "alive"
        notification_period     24x7            ; Send notifications at any time
        notification_interval   30              ; Resend notifications every 30 minutes
        notification_options    d,r             ; Only send notifications for specific host states
        contact_groups          admins          ; Notifications get sent to the admins by default
        register                0               ; DONT REGISTER THIS - ITS JUST A TEMPLATE
        }

# Generic service definition template - This is NOT a real service, just a template!

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                   Time _Period    ; 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 10 minutes under normal conditions
        retry_check_interval            1                       ; 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           60                      ; Re-notify about service problems every hour
        notification_period         Time _Period    ; Notifications can be sent out at any time
         register                        0                      ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
        }

# Local service definition template - This is NOT a real service, just a template!

Code: Select all

define service{
        name                            local-service           ; The name of this service template
        use                             generic-service         ; Inherit default values from the generic-service definition
        max_check_attempts              4                       ; Re-check the service up to 4 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            1                       ; Re-check the service every minute until a hard state can be determined
        register                        0                       ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
        }

[slansing]

What do you have set for the "ocsp_command" definition? I noticed you have obsess_over_service on one of your definitions above. Also, are these objects entering into a flapping state?

[vinothsethuram]

I didn't define ocsp_command .It should be default. Will that be a reason for sending lot of duplicate emails?

[slansing]

I don't see any discrepancies here, could you possibly copy the results from two of your duplicate emails "Subject and body," if possible, the first one you received and then the second one? Just paste them here in code wraps, be sure to ommit any sensitive information though there should be none in the emails themselves.