Nagios Support Forum

Posted: **Tue Mar 10, 2015 3:08 pm**

Hi,

I seem to be having issue presenting ARGs for users, swap, procs, and zombie procs checks. For all else, it seems to be working fine. Please see below:

Client side:

Code: Select all

command[check_users]=/usr/lib64/nagios/plugins/check_users -w $ARG1$ -c $ARG2$
command[check_zombie_procs]=/usr/lib64/nagios/plugins/check_procs -w $ARG1$ -c $ARG2$ -s Z
command[check_total_procs]=/usr/lib64/nagios/plugins/check_procs -w $ARG1$ -c $ARG2$
command[check_swap]=/usr/lib64/nagios/plugins/check_swap -w $ARG1$ -c $ARG2$

Server side:

Code: Select all

define service {
        use                     generic-service
        hostgroup_name          x
        service_description     Current Users
        check_command           check_nrpe!check_users!15!20!
        contact_groups          admins
        }

define service {
        use                     generic-service
        hostgroup_name          x
        service_description     Total Processes
        check_command           check_nrpe!check_total_procs!950!1000!
        contact_groups          admins
        }

define service {
        use                     generic-service
        hostgroup_name         x
        service_description     Zombie Processes
        check_command           check_nrpe!check_zombie_procs!5!10!
        contact_groups          admins
        }

define service {
        use                     generic-service
        hostgroup_name         x
        service_description     Swap Usage
        check_command           check_nrpe!check_swap!20%!10%!
        contact_groups          admins
        }

Output on the GUI:

Current Users
Notifications for this service have been disabled
UNKNOWN 03-10-2015 16:03:14 0d 0h 15m 8s 3/3 check_users: Warning threshold must be a positive integer
Swap Usage
Notifications for this service have been disabled
UNKNOWN 03-10-2015 15:56:34 0d 0h 11m 48s 3/3 check_swap: Warning threshold must be integer or percentage!
Total Processes
Notifications for this service have been disabled
UNKNOWN 03-10-2015 15:58:15 0d 0h 6m 7s 3/3 check_procs: Warning Process Count must be an integer!
Zombie Processes
Notifications for this service have been disabled
UNKNOWN 03-10-2015 15:59:05 0d 0h 9m 17s 3/3 check_procs: Warning Process Count must be an integer!

Here is an example of something I am using that does work:

Client:

Code: Select all

command[check_x]=/usr/lib64/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p /x/y

Server:

Code: Select all

define service {
        use                     generic-service
        hostgroup_name          x
        service_description     /x/y Free Space
        check_command           check_nrpe!check_x!40%!20%!
        contact_groups          admins
        }

Free Space
Notifications for this service have been disabled
OK 03-10-2015 16:05:03 0d 2h 42m 18s 1/3 DISK OK - free space: /x/y 1696223 MB (98% inode=99%):

Is there something I am missing?

Thank you.

Posted: **Tue Mar 10, 2015 3:19 pm**

A couple of things...

First, are you even sure that you have argument passing enabled?

Code: Select all

dont_blame_nrpe=1

Secondly...

I think you want to replace $ARG1$ with $ARG2$, and $ARG2$ with $ARG3$, etc...

http://nagios.sourceforge.net/docs/3_0/macros.html

--EDIT--

Sorry, I cascaded your configs in my head improperly - ignore the "secondly" part. This leaves us with hopefully the simple question - did you NRPE get compiled with the option to pass arguments and also did you configure it as specified in your nrpe.cfg?

Posted: **Tue Mar 10, 2015 6:16 pm**

Can you please post your command definition:

check_command check_nrpe

Posted: **Wed Mar 11, 2015 8:00 am**

Hi,

I believe I have argument passing enabled. It seems some check commands work with arguments while others do not.

Here is my check_nrpe command:

Code: Select all

define command{
        command_name    check_nrpe
        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }

Thank you.

Posted: **Wed Mar 11, 2015 9:32 am**

In your OP you indicated check disk was working but the others weren't. The error indicated by the others is the type of error you'd get if args weren't getting passed:

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[jdalrymple@localhost libexec]$ ./check_users -w -c
check_users: Warning threshold must be a positive integer
Usage:
check_users -w <users> -c <users>

However some checks are tolerant to mangled command line specs:

Code: Select all

[jdalrymple@localhost libexec]$ ./check_disk -w -c -p /
DISK OK - free space: / 13346 MB (79% inode=92%);| /=3462MB;17709;;0;17709

Try making your disk-free warning threshold 99% and see if it alerts.

Posted: **Wed Mar 11, 2015 10:27 pm**

and1100 wrote:
Code: Select all
command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

and1100 wrote:

Code: Select all

command[check_users]=/usr/lib64/nagios/plugins/check_users -w $ARG1$ -c $ARG2$

and1100 wrote:

Code: Select all

define service {
        use                     generic-service
        hostgroup_name          x
        service_description     Current Users
        check_command           check_nrpe!check_users!15!20!
        contact_groups          admins
        }

What is happening here is you only have one argument defined in your command, so nagios executes this:

Code: Select all

check_nrpe -H the_host -c check_users

And nrpe tries to execute this:

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/usr/lib64/nagios/plugins/check_users -w -c

So it gives you this error:

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UNKNOWN 03-10-2015 16:03:14 0d 0h 15m 8s 3/3 check_users: Warning threshold must be a positive integer

Which is correct as you haven't specified a warning value.

So this needs to be:

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command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -a $ARG2$ $ARG3$

Which means nagios will execute this:

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check_nrpe -H the_host -c check_users -a 15 20

And nrpe will execute this:

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/usr/lib64/nagios/plugins/check_users -w 15 -c 20

Does that make sense?

Posted: **Mon Mar 16, 2015 9:11 am**

Hi Box293,

Yes, that does make sense. Thank you all for the assistance. I will try these out and see if I receive expected results.

Thanks for the help!!

Posted: **Mon Mar 16, 2015 10:24 am**

Please let us know the results of your testing when you can. Thank you!

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