Nagios Modification for No Host Dependency?

[Jay Radcliffe]

Hello,

I have been running a fairly large Nagios setup (40,000 service checks
4500 hosts) and I wanted to see if anyone has worked on a certain
"problem".

When nagios runs service checks and gets no response from a service
check, it stops working other service checks until it can determine if
that host that had the timeout is up or not. After reading the
archives I know that other people have ran into this situation. The
reason it puts all service checks on hold is due to the feature of
dependencies. If there is a host down then nagios assumes that there
could be other hosts/services dependent on that host, thus it stops
checking services until it can determine if that host is up. Previous
posts have indicated that this is a feature, not a bug. While I agree
that this is usually the case there are some special circumstances.

In my situation there are no host dependencies. I would prefer nagios
to keep running service checks while it runs through the host checks
to see if the service check timeout is due to the host being down. I
wanted to see if there is a patch or source code modification that
would take this action. Obviously I would prefer it to be something
configurable in the nagios.cfg file (ignorehostdependancy=0/1) but
that might be harder then just making a source code tweak. Before I
went digging in the source, I wanted to see if anyone else had tried
this.

Jay Radcliffe

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