Service failover dependency

[Assaf Flatto]

Andrey Mitroshin wrote:
> Hello,                                                                                                                                                       
> I'm about to implement simple failover scenario with nagios. It consists of
> host A, host B and nagios host. When host A is down nagios executes
> event handler which performs dynamic dns update on some hostname to
> point it to host B. But when host B is down, nagios should not execute
> event handler as there is nothing to switch to. How can I configure 
> nagios not to execute event hanlder when some service check or host
> check has failed?
> Thanks in advance.
> --
>  mit.
>
>   
When you configure the service , you define event handlers , you can 
create a service definition for each host and service , so you can 
exclude any host or service from running the event handler .

example :
define service {
          hostgroups WEB
          host_name !web1 , !web2
          ...
          eventhandler   change_dns
}


this will cause the service and event handler to work on all hosts in 
the WEB hostgroup excluding the web1 and web2 servers.

hope this helps .

Assaf

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