Dependency clarification

[Hollist, Seth]

I'm having a similar problem as described in the message below (I found it
by searching the archives).  The thing I found is that all the services get
reported as down, but main service that they are all dependant on (the one
that is truly down) stays available.  I looked into why it was still showing
as available, and it appears that the check keeps getting differed for some
reason.  I tested it for hours, and the main service that everything else is
dependent on continues to say it hasn't been check for a longer and longer
period of time.  Am I doing something backwards?

I'll cut and past a few small portions of my config to hopefully show you
how I've setup my dependencies:


define host{
        use                     generic-unix-host
        host_name               lilo
        alias                   Lilo
        address                 10.128.52.203
        check_command           check-host-alive
        parents                 ingslcsdc-c
        }


define servicedependency{
        name                            generic-service-deps
        dependent_service_description   PING
        execution_failure_criteria      w,u,c
        notification_failure_criteria   w,u,c
        register                        0
        }


define servicedependency{
        use                             generic-service-deps
        host_name                       lilo
        dependent_host_name             ingslcsdc-c
        service_description             PING
        }
define hostdependency{
        host_name                       lilo
        dependent_host_name             ingslcsdc-c
        }
define servicedependency{
        use                             generic-service-deps
        name                            lilo-service-deps
        host_name                       lilo
        dependent_host_name             lilo
        register                        0
        }


define service{
        use                             generic-unix-service
        host_name                       lilo
        service_description             SSH
        check_command                   check_tcp!22
        }
define servicedependency{
        use                             lilo-service-deps
        service_description             SSH
        }


define service{
        use                     generic-unix-service
        host_name               lilo
        service_description     NRPE
        check_command           check_nrpe_up
        }
define servicedependency{
        use                             lilo-service-deps
        service_description             NRPE
        }
define servicedependency{
        use                             generic-service-deps
        name                            lilo-nrpe-service-deps
        dependent_service_description   NRPE
        host_name                       lilo
        dependent_host_name             lilo
        register                        0
        }


define service{
        use                     generic-unix-service
        host_name               lilo
        service_description     MEM
        check_command           check_nrpe!check_mem
        }
define servicedependency{
        use                             lilo-nrpe-service-deps
        service_description             MEM
        }


-----Original Message-----
From: Petr Simek [mailto:psimek at jcu.cz]
Sent: Friday, July 02, 2004 12:51 PM
To: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] Dependancy clarification

On Fri, 2 Jul 2004, James Whittington wrote:

> I am checking a 30 - 40 internet facing services out of a backup
> internet link we have.  Each website I manage is set as a host, the
> website hostgroup uses check_http to check websites.
>
> When there are hickups on the internet link I get 30 or so pages telling
> me all the sites are down.
>
> The current route would be:
> Nagios - SOHO - Cable modem - Internet - Pix - Websites
>
> I have tried to set up service dependancies where each segment of the
> way depends on each other:
> Cable Modem depends on SOHO being up
> Internet depends on Cable modem being up
> Pix depends on Internet access point being up
> Websites depend on PIX being up
>
> But I disconnected the cable modem and still got notifications that the
> sites were down.

See if cable modem DOWN state is detected before dependend sites are
detected as DOWN (max_atempts x normal_check_interval). Then You can
define in dependencies that next checks of dependent sites is supressed.

> James Whittington


This e-mail, including attachments, may include confidential and/or
proprietary information, and may be used only by the person or entity to
which it is addressed. If the reader of this e-mail is not the intended
recipient or his or her authorized agent, the reader is hereby notified that
any dissemination, distribution or copying of this e-mail is prohibited. If
you have received this e-mail in error, please notify the sender by replying
to this message and delete this e-mail immediately.

"Secure Server" made the following
 annotations on 09/21/2004 03:35:10 PM
------------------------------"This e-mail, including attachments, may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this e-mail is not the intended recipient or his or her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this e-mail is prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and delete this e-mail immediately."
==============================


-------------------------------------------------------
This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
Project Admins to receive an Apple iPod Mini FREE for your judgement on
who ports your project to Linux PPC the best. Sponsored by IBM.
Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null