Can Cacti poll passively via Nagios client?

Max perldork at webwizarddesign.com
Wed Mar 19 22:26:28 CET 2008


On Wed, Mar 19, 2008 at 5:20 PM, Roger <Roger at nagioswiki.com> wrote:
> Is it possible to use Cacti to poll via passive checks on servers?
>
> Since Nagios has a problem with a high numbers of active checks, I'm hoping
> to use Cacti's poller to tell servers buried behind firewalls to check
> neighboring internal devices and then report back to the centralized Cacti
> servers in my colo.
>
> Any thoughts on this?

You could use Cacti to poll, as a part of each check you do, have it
append to a file, a database, some type of persistent storage, and
then have a another script that runs, either via cron or as a daemon,
that pulls events from the persistent store and submits them to Nagios
as passive checks using NSCA ... or have the checks themselves call
send_nsca to submit the checks to Nagios over the wire ...

I know that doesn't give you an all Cacti solution, but this is a
Nagios group :).

Have you thought about using distributed Nagios as another solution to
this problem?

Finally, if you make use of perfdata and use PNP or another graphing
framework add-on to Nagios, you can pretty much replace Cacti
altogether for graphing and reduce the double polling that happens
when Cacti and Nagios are checking the same sets of devices ...

- Max

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