do not enough $ARG$ for my service

[sacom01]

hi ben,
first, ncpa version : Agent_version was ['2.2.2']

the picture you send, "I'm able to view more than one line of output in the XI interface." Two lines you see, it was only ONE, you can see the PID and Mem_vms, it same.

"For testing purposes, can you adjust the thresholds so you definitely are returning more than one line? "
--> you can see thresholds in two server are the same but it show very different result.

i'm not clear what you mean in this.

[benjaminsmith]

Hi sacom01,

When I tested this I was not able to notice a difference between running the plugin locally vs using NCPA. Overall the plugin returns an exit code and plugin output that Nagios can process.

the picture you send, "I'm able to view more than one line of output in the XI interface." Two lines you see, it was only ONE, you can see the PID and Mem_vms, it same

I believe this is an issue with the plugin itself and the way it outputs data. Can you provide more specifics are what you would expect to see, my apologies, but I'm not 100% clear on the requirements?

Thanks,
Benjamin

[sacom01]

"Can you provide more specifics are what you would expect to see, my apologies, but I'm not 100% clear on the requirements?"
--> the issue here is it was not show all alert exist in the server. E.g : when we run on the command, it have 80 process have been alerted. But on the Nagios, it show only one - itself process.

You can see the picture, it will show like that

[benjaminsmith]

Hi,

If it's returning in the CLI, but not in the GUI, I suspect it's maxing out the database field size. What is the output of the following command:

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echo 'desc nagios_servicechecks;desc nagios_hostchecks;' | mysql -u root -pnagiosxi nagios -t

--Benjamin

[sacom01]

hi,
"I suspect it's maxing out the database field size" --> i dont think so bro. At least it will show 7-8 rows, it work like that on UAT environment but in production it show just one as you known.

[benjaminsmith]

Hi,

Thanks for posting the query, that looks okay. It looks like what is happening is when running the plugin, NCPA runs as the nagios user account and it can only see the processes for that user account.

If you want to see every process, then the plugin will have to run as sudo. In order to do this, NCPA has to be version 2.1 or higher.

New configuration options - New configuration options available:
run_with_sudo - Comma separated list of plugin names that should be ran through sudo

See:
https://www.nagios.org/ncpa/help/2.2/index.html
https://github.com/NagiosEnterprises/ncpa/issues/304

Try enabling sudo and test this once more. In the ncpa.cfg file on the remote host add the following

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run_with_sudo = /usr/local/ncpa/plugins/check_OSprocess.py

Then add the following to the "/etc/sudoers" file on your remote NCPA agent.

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nagios ALL=(ALL) NOPASSWD:/usr/local/ncpa/plugins/check_OSprocess.py

Be sure to restart the NPCA service after making those changes. If you get any error messages, please post them to the thread.

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systemctl restart  ncpa_listener

[sacom01]

hi,
i tried add sudo for plugin but not effect.
then i tried run on remote server using nagios user but it not work as well

[ssax]

What is the output of this command on the remote system (not the XI server)?

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mount | grep hidepid

I didn't need to use sudo on mine, all I had to do was change this in the ncpa.cfg:

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.py = python3 $plugin_name $plugin_args

If you run these commands as root on the remote system, do you see all the pids from other users?

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su - nagios
ps aux

[sacom01]

hi,
python3 already set for python on ncpa.cfg

[benjaminsmith]

Hi,

Thanks for checking that. Please open a support ticket for this issue and reference this post when opening a ticket. We'll have to get a remote session set up to take a closer look at the systems as we haven't been able to replicate the issue here.

To open a support ticket:

https://support.nagios.com/tickets/

Thanks,
Benjamin