Nagios plugin to monitor Cacti log

[rony]

Well, I was on a kick to write a shell script monitor a Cacti server, I figure I might as well write a nagios plugin to monitor the Cacti log.

Parameters can be set from command line or by editing the script.

[rony]

Also should note, if you are using Cacti not on the same machine as Nagios, I would suggest using NRPE to use the plugin on the Cacti server.

[knobdy]

I'm thinking this goes into services.cfg - so what is the format one should use for the check_command? Whatabout the checkcommands.cfg file?

I've edited the script for my system and can run it correctly from the command line (just running it) but Nagios is showing:

[knobdy]

So, any news on this? I haven't yet been able to get Nagios to work with this script - via Nagios (run manually, again, it reports everything OK). I think its just an issue with my configuration of the service in the config file - so perhaps just an example of your setup?

[rony]

Are you running the plugin on the same server that Cacti is installed on? Does the user that nagios is running as have access to the Cacti log file?

[knobdy]

It is on the same server and the cacti log file is RW for user and group - the group is "users" and nagios is in that group.

[rony]

In your nagios services configuration, surround the path on the service check with single quotes.

[Hiney]

someone asked what to do with the checkcommands.cfg

I added

define command{
command_name check-cacti-log
command_line $USER1$/cacti_log_check.sh
}

i added the following to the server.cfg file

# Define a service to check the cacti log
define service{
use generic-service ; Name of service template to use
host_name <server>
service_description Cacti log
is_volatile 0
check_period 24x7
max_check_attempts 4
normal_check_interval 5
retry_check_interval 1
contact_groups admins
notification_options w,c,r
notification_interval 1440
notification_period daytime
check_command check-cacti-log
}

[rony]

Thanks, I don't have a Nagios installation to test on and haven't used it in years..

[prune]

Hi,

I made a post some time ago, but this is an update.
I made a patch to threshold plugin so the alert can be passed to Nagios as a passive check.
Feel free to check and download it from my blog :

http://www.lecentre.net/blog/archives/77

If your Nagios install is on a remote host, change the script to send the alarm by scp or ssh.

Hope this can help