On Thu, 2009-08-06 at 09:08 -0700, Mirza Dedic wrote:
> Hello,
>
> I plan to use Host Check Dependency on my services... can someone please
> confirm that the below will do the following scenario: If Ping fails to the
> host machine (van-sql01) that is being monitored, Nagios will suppress the
> services listed in the dependent_service_description portion of the
> configuration...
>
> define servicedependency{
> host_name van-sql01
> service_description Ping
> dependent_host_name van-sql01
> dependent_service_description NSClient Version, Uptime, C - Disk
> Space, D - Disk Space, CPU Over 25min, Memory
> execution_failure_criteria w,u,c
> notification_failure_criteria w,u,c
> }
>
> Will this setup achieve that?
>
> What if Nagios does not check PING first? Or will the setup above force for a
> ping check initially before checking these services? (If ping is still
> pending, will it wait until It gets the status of PING before checking these
> services and suppressing them incase PING has failed??)
>
> Thanks.
>
Yes, what you have looks fine. I have the same situation with checking
linux servers over ssh, and my service dependency list is quite similar
to yours -
define servicedependency{
host_name
linux_server_1
service_description ssh
dependent_host_name
linux_server_1
dependent_service_description var
partition,total processes,current load,swap usage
notification_failure_criteria
c,u,w
execution_failure_criteria c,u,w
}
I don't know about scheduling well enough to say if the non-dependent
service is checked first, or if simply the notices/event
handlers/whatever else you have happening/ are delayed on the key
service, but you won't see any action taken by nagios until the
dependent service state is established.
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