Advances servicedependency configuration

[Paul Fitzpatrick]

Not quite.  You still have to list each host explicitly.  I am interested in
the case where you know that service1 is dependent on service2 on the
individual hosts of hostgroup1.  I want to be able to express this
servicedependency relationship without needing to list each and every host
in the hostgroup.

On Thu, Mar 19, 2009 at 4:05 PM, Andy Shellam <andy-lists at networkmail.eu>wrote:

> Hi,
>
> I'm sure this has been implemented in Nagios 3.  I wrote an on-line
> application that generated service dependencies for individual
> hosts/services in a group in Nagios 2, and I'm sure I read that was now
> no longer an issue in v3.
>
>  From the manual -
>
> http://nagios.sourceforge.net/docs/3_0/objecttricks.html#same_host_dependency
> :
>
> "If you want to create service dependencies for multiple services that
> are dependent on services on the same host, leave the
> /dependent_host_name/ and /dependent_hostgroup_name/ directives empty."
>
> Is this what you were trying to achieve?
>
> Andy
>
> Paul Fitzpatrick wrote:
> > I agree (if I understand your request correctly) that it would be
> > *extremely* useful to have a config directive that effectively allows
> > you to say, 'in hostgroupX make serviceY depend on serviceZ on the
> > individual host itself'  as opposed to making it dependent on serviceZ
> > on all the other hosts of hostgroupX.
> >
> > I have a script I run prior to running a config check that expands the
> > host member list of hostgroups with service dependencies and then
> > populates the servicedependency definition with the relevant
> > hostnames, but it's a hack with obvious drawbacks.
> >
> > An ex colleague of mine wrote a patch for v2.0 that defined a 'SELF'
> > directive that enabled defining servicedependencies as I described.
> > Unfortunately I am not a C programmer, so I wasn't able to duplicate
> > it for v3, so I wrote the perl script.
> >
> > I hope the enhancement will be considered
> >
> > Paul
> >
> > On Wed, Mar 18, 2009 at 8:14 AM, Michael Maymann <michael at maymann.org
> > <mailto:michael at maymann.org>> wrote:
> >
> >     Hi List,
> >
> >     Is there a way to solve my problem with the following
> >     servicedependency config:
> >     http://forums.meulie.net/viewtopic.php?f=59&t=4606
> >     <http://forums.meulie.net/viewtopic.php?f=59&t=4606>
> >
> >
> >     ---
> >     I'm using Nagios 3.0.6 with nrpe.
> >     I'm about to setup NRPE service dependencies and would like to
> >     know the best way to do this.
> >
> >     for a test i have configured the below and it works great, and i
> >     could "just" make these servicedependencies for every host.
> >     # NRPE dependencies
> >     define servicedependency{
> >     host_name host1
> >     # hostgroup_name hostgroup1
> >     service_description NRPE
> >     dependent_host_name host1
> >     # dependent_host_name $HOSTNAME$
> >     dependent_service_description Current Users,Free Space,HW
> >     info,Health,High CPU Load,Log file,NFS client stats,NTP
> >     stratum,Pdflush Processes,RAID,Swap Space,Temps,Zombie Processes
> >     execution_failure_criteria w,u,c,p
> >     notification_failure_criteria w,u,c,p
> >     }
> >
> >     My only problem is that we have ---A LOT--- of hosts so this is
> >     not an option :-)
> >     I am aware of the -u option to check_nrpe but a combination of
> >     only running some checks once every day and automated
> >     powermanagement makes this no option either.
> >     It would be nice if i somehow could get the functionality of the
> >     commented lines:
> >     # hostgroup_name hostgroup1
> >     # dependent_host_name $HOSTNAME$
> >     so for each host in hostgroup1 all the "dependent_service_
> >     descriptions" services are dependent on NRPE in this specific host.
> >     so if "hostgroup1" contains host1 and host2, "Current Users" on
> >     host1 will be dependent on NRPE on host1 but not dependent on NRPE
> >     on host2...
> >
> >     Is there a way to do this or do i need to make a hack and/or put
> >     an entry in the wishlist ?
> >     ---
> >
> >
> >     Thanks in advance
> >     ~Maymann
> >
> >
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