Hi,
Using Nagios v3.2.1
I am have problems defining host dependency object inheritance
(chaining) using templates. It "appears" that if you use 2 levels of
inheritance, Nagios doesn't like it and aborts with the following error:
Error: Could not expand dependent hostgroups and/or hosts specified in
host dependency (config file
'/usr/local/nagios/etc/manual/templates-hosts.cfg', starting on line 123)
Here is my config.
I created the following host dependency templates in
'/usr/local/nagios/etc/manual/templates-hosts.cfg'. This is where the
error is found so I've highlighted line 123:
define hostdependency{
name dc-ping-proxy
execution_failure_criteria d,u,p
notification_failure_criteria d,u,p
register 0
}
define hostdependency{
use dc-ping-proxy
name cam-ping-proxy
host_name rp1b
register 0
}
define hostdependency{
<------- Line 123
use dc-ping-proxy
name tcl-ping-proxy
host_name rp1a
register 0
}
I then created the following 2 host dependency definitions which use the
bottom 2 templates:
define hostdependency{
use cam-ping-proxy
dependent_host_name cam-int
}
define hostdependency{
use tcl-ping-proxy
dependent_host_name tcl-int
}
This should expand as follows:
define hostdependency{
host_name rp1b
dependent_host_name cam-int
execution_failure_criteria d,u,p
notification_failure_criteria d,u,p
}
define hostdependency{
host_name rp1a
dependent_host_name tcl-int
execution_failure_criteria d,u,p
notification_failure_criteria d,u,p
}
but I get the error.
I then changed the configs to remove 1 level of inheritance. My
templates and definitions now look like this:
Template:
define hostdependency{
name dc-ping-proxy
execution_failure_criteria d,u,p
notification_failure_criteria d,u,p
register 0
}
Definitions:
define hostdependency{
use dc-ping-proxy
host_name rp1b
dependent_host_name cam-int
}
define hostdependency{
use dc-ping-proxy
host_name rp1a
dependent_host_name tcl-int
}
This should expand to the same configuration as when there were 2 levels
of inheritance.
However, the second configuration works fine but the first one doesn't.
Also, I have created a similar service dependency setup with 2 levels of
inheritance and that works fine.
Can someone cast their eye over the configs listed above to see if there
is anything obvious that I have done wrong with the inheritance?
regards,
Aidan
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