Pinging every host at a specific interval?

[Ryan Whalen]

OHhh...ok i gotcha now!  I was looking at the wrong screen.  If i go to
Service Detail, everything shows up as being updated very recently.

Thanks for the help.

-Ryan

On 1/27/06, Marc Powell <marc at ena.com> wrote:
>
>
>
> > -----Original Message-----
> > From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
> > admin at lists.sourceforge.net] On Behalf Of Ryan Whalen
> > Sent: Friday, January 27, 2006 12:39 PM
> > To: nagios-users at lists.sourceforge.net
> > Subject: Re: [Nagios-users] Pinging every host at a specific interval?
> > {Disarmed} {Fraud?}
> >
> > Here is an example of a Host.  I have ~40-50 of these one after
> another in
> > the minimal.cfg file.
> >
> > define host{
> >         use                     nn-ping            ; Name of host
> template
> > to use
> >         host_name               Ryan Whalen
> >         alias                   Ryan Whalen
> >         address                 192.168.1.15
> >         check_command           check-host-alive
> >         max_check_attempts      10
>
> I'd recommend changing this to 1 and verify that check_host_alive only
> sends 1 or 2 pings. You really don't need more than that under normal
> circumstances to determine if the host is down. Adjust that if you have
> a lossy network that you can't fix for some reason.
>
> Also, now that I re-read your original mail it might be a
> misunderstanding about how nagios operates. You say --
>
> "What I would like to happen is for Nagios to ping them all every 5
> minutes, and display their status.  However, some hosts have not been
> polled for over 2 hours."
>
> Nagios only checks the status of a _host_ IFF a service on that host
> returns a non-OK state. The logic is that if a service is OK then the
> host must be OK so why check it? Are the delayed checks that you are
> seeing truly host checks or service checks as well?
>
>
> > Here is the service template:
> >
> > define service{
> >         name                            nn-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 t
> >         obsess_over_service             1       ; We should obsess
> over
> > this service (if necessary)
>
> What is your OCSP command doing? Could that be causing a delay?
>
> >         process_perf_data               1       ; Process performance
> data
>
> Same question here. How are you processing the perfdata?
>
>
> > define service{
> >         use                             nn-service         ; Name of
> > service template to use
> >         host_name                       Ryan Whalen,(other hosts go
> here)
> >         service_description             PING
> >         is_volatile                     0
> >         check_period                    24x7
> >         max_check_attempts              4
> >         normal_check_interval           5
> >         retry_check_interval            1
> >         contact_groups                  admins
> >         notification_interval           960
> >         notification_period             24x7
> >         check_command                   check_ping!100.0,20%!500.0,60%
> >         }
>
> Looks good. What do you use for your timeouts in nagios.cfg? We use --
>
> service_check_timeout=45
> host_check_timeout=30
> event_handler_timeout=30
> notification_timeout=30
> ocsp_timeout=5
> perfdata_timeout=5
>
> In your ps list do you see any orphaned check commands or nagios
> processes that have been hanging out for a while? What does the
> scheduling queue show for the services that haven't been checked in a
> while.
>
>
> --
> Marc
>
>
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