Nagios Plugins - NCPA agent

[Bala.Mutyam]

Hi,

We are currently using NRPE agent as agent for Nagios checks but we would like to replace it with NCPA.

We have installed Nagios plugins and all plugins are placed in /usr/lib64/nagios/plugins/ by default and we can run nrpe commands from there.

For NCPA /usr/local/ncpa/plugins is the default location for plugins and we need to copy plugins from /usr/lib64/nagios/plugins/ to /usr/local/ncpa/plugins manually.

we tried to change default plugin location for NCPA by changing in /usr/local/ncpa/etc/ncpa.cfg but we are getting "UNKNOWN: The plugin (check_disk) requested does not exist." error.

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# Plugin path where all plugins will be ran from.
#
plugin_path = /usr/lib64/nagios/plugins/

Any solutions to stop copying plugins? also any documentation for migration from NRPE to NCPA?

[mbellerue]

On the machine running NCPA, can you show the output of,

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su - nagios
/usr/lib64/nagios/plugins/check_disk --help

Also just to confirm, when you changed the plugin_path, did you restart ncpa_listener?

Unfortunately there isn't a document just yet for converting from NRPE to NCPA. One thing you may be interested in is the fact that NCPA just has a lot of the service checks that you get from the Nagios plugins. If you open a web browser and navigate to the machine's IP address on port 5693, you should be able to log in to NCPA, and look at the API. You may find that you don't need the plugins that are installed on the system.

[Bala.Mutyam]

@mbellerue : Hi, thanks for the update.

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bash-4.2$ whoami
nagios
bash-4.2$ /usr/lib64/nagios/plugins/check_disk --help
check_disk v2.2.1.git (nagios-plugins 2.2.1)
Copyright (c) 1999 Ethan Galstad <[email protected]>
Copyright (c) 1999-2018 Nagios Plugin Development Team
        <[email protected]>

This plugin checks the amount of used disk space on a mounted file system
and generates an alert if free space is less than one of the threshold values


Usage:
 check_disk -w limit -c limit [-W limit] [-K limit] {-p path | -x device}
[-C] [-E] [-e] [-f] [-g group ] [-k] [-l] [-M] [-m] {-A | [-R path] [-r path]}
[-s] [-t timeout] [-u unit] [-v] [-X type] [-N type] [-n]

Also just to confirm, when you changed the plugin_path, did you restart ncpa_listener?
yes

We are looking for some checks not part of API.

[Bala.Mutyam]

@mbellerue: Hi, Sorry i only test on server and it had some issues with the config. I have stopped ncpa_listener service and killed any process still running. It's working fine. Apologies.

Code: Select all

# Plugin path where all plugins will be ran from.
#
plugin_path = /usr/lib64/nagios/plugins/

[mbellerue]

Oh, so the ncpa_listener was not restarting properly? I just want to confirm, now that you have ncpa_listener restarted, it is picking up and able to execute the plugins in /usr/lib64/nagios/plugins/. Is that correct?

[Bala.Mutyam]

Oh, so the ncpa_listener was not restarting properly?

yes, i killed ncpa_listener process was showing as running after the ncpa_listener service stop and restarted

I just want to confirm, now that you have ncpa_listener restarted, it is picking up and able to execute the plugins in /usr/lib64/nagios/plugins/. Is that correct?

correct

[benjaminsmith]

HI @Bala.Mutyam,

I just want to confirm, now that you have ncpa_listener restarted, it is picking up and able to execute the plugins in /usr/lib64/nagios/plugins/. Is that correct?
correct

Sounds like the checks are working for you now? If so, let us know if it's ok to close out this thread.

Thanks!
Benjamin

[Bala.Mutyam]

Hi @Benjamin,

yes, working fine, please close the thread.

Thank

[scottwilkerson]

Hi @Benjamin,

yes, working fine, please close the thread.

Thank

Great!

Locking thread