Alloo, Vincent wrote:
> Andreas,
> Here is an extract of my setup:
>
> define servicegroup{
> servicegroup_name nrpe_services
> alias NRPE Services
> }
>
> define servicedependency{
> host_name svxnagios02
> service_description check_uname
> dependent_servicegroup_name nrpe_services
> notification_failure_criteria w,u,c
> }
>
> define service {
> use unix_24_7
> host_name svxnagios02
> service_description check_uname
> check_command check_nrpe_ssl!uname!0
> notification_options c,r
> process_perf_data 0
> }
>
> And a bunch of:
> define service {
> use unix_24_7
> hostgroup_name
> sol-servers,linux-servers,sol-zone-servers,sol-servers-with_hotspare
> service_description CPU load
> check_command check_nrpe_ssl!check_load!5,4,3!6,5,4
> servicegroups nrpe_services
> }
> .....(3600 services within the nrpe_services service group)
>
Oh. Are you proxying all your NRPE checks through some other system? I
can't imagine why this would be a good idea, but to each his own, I suppose.
With this configuration, each of the 3600 services should each depend on
exactly one other service, so the problem I initially foresaw is not in place.
However, like Sascha mentioned, Nagios instead seems to run that extra check
before any of the other 3600 service checks.
I'll need to run some manual testing on this. Since you've only specified
"notification_failure_criteria", Nagios should be able to avoid checking
the service being depended on until it's trying to send a notification. In
fact, it should probably switch the checking order around so that the service
being depended upon is checked *after* the dependent service. That would
solve your problem until NRPE starts failing. After that, there's no help
for it, but then you should definitely see some service check cache hits
which will at least make the load on the system bearable. I'll try to find
some time to look into this next week at the latest.
--
Andreas Ericsson [EMAIL PROTECTED]
OP5 AB www.op5.se
Tel: +46 8-230225 Fax: +46 8-230231
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