NRPE: Command 'check_swap' not defined

[tom.welsh at bt.com]

Ok Lets take it from the top.

1.  About the software you have installed

1a. What OS are you using

1b. What version of Nagios and nagios Plugins are you using?

1c. What version of nrpe are you using?

1d. Is Nagios and the Plugins configured?

1e. If you run nagios -v ./nagios.cfg does it pass the pre-flight check?

1f. What user are you running the check_nrpe command as?

2.  On remote nrpe box

2a. Is nrpe defined in /etc/services?

    nrpe            5666/tcp   Nagios Remote Plugin Executor

2b. Is nrpe defined in inetd/xinetd?

2c. Is nrpe listening to the port

    Test_Server_1:~ # netstat -a |grep nrpe
    tcp        0      0 *:nrpe                  *:*
LISTEN

2d. Can you telnet from the nagios host to the remote nrpe port?

    nagios at usel:~> telnet Test_Server_1 5666
    Trying 132.146.185.160...
    Connected to h12oiap.btvsu.net.
    Escape character is '^]'

2e. Check the definition of check_swap in your nrpe.cfg file

    command[check_swap]=/usr/local/nagios/libexec/check_swap -w 30% -c
20%

If all off section 2 is working and you can telnet to the port then nrpe
is configured to listen correctly


 3. Checking nagios install on local nagios monitoring host.

3a. Is nagios running?

3b. Does the nagios pre-flight check pass ok

    /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

    ---------<SNIP>--------
    Total Warnings: 0
    Total Errors:   0

    Things look okay - No serious problems were detected during the
pre-flight check
    ---------<SNIP>--------

3c. Lets look at your /usr/local/nagios/etc/checkcommand.cfg file
    Have you specified a check_load or as I like to define different
local and remote
    commands check_nrpe_swap in the file above. If you haven't you will
get an error
    like you are seeing.

    # ' check swap space usage on remote systems
    define command{
        command_name    check_nrpe_swap
        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }


I have run through the above and when I run the check_nrpe command on
the command line I get the following

nagios at usel:/usr/local/nagios/libexec> ./check_nrpe -H Test_Server_1 -c
check_swap
SWAP OK - 100% free (5137 MB out of 5137 MB)
|swap=5137MB;1541;1027;0;5137

And like an epiphany, I just read your post title, it looks like you
need to define the check swap in your checkcommands.cfg file first. 

Hope this helps.

Tom

-----Original Message-----
From: yu-ting_liu at agilent.com [mailto:yu-ting_liu at agilent.com] 
Sent: 02 May 2007 10:24
To: Welsh,T,Tom,XSL4A C
Cc: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] NRPE: Command 'check_swap' not defined

Hi,

No, I even can't run check_nrpe command successfully in command line.
Below is the running command and output:

	-sh-3.00$ ./check_nrpe -H remote_client_name -c check_load 
	NRPE: Command 'check_load' not defined 

I've turned on the debug in my remote client nrpe.cfg file but no
message outputs to my system log file at all -
/var/adm/syslog/syslog.log. That's also puzzle me. I'm using nrpe.cfg
sample file to config and nrpe daemon is running as below on the client.

	nagios 14891     1  0 16:18:47 ?         0:00
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

Regards,

Yu Ting

-----Original Message-----
From: tom.welsh at bt.com [mailto:tom.welsh at bt.com]
Sent: Wednesday, May 02, 2007 5:01 PM
To: yu-ting_liu at agilent.com
Cc: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] NRPE: Command 'check_swap' not defined

Hi 

When you run the command manually does it work?

Here is what I get when I run my command

nagios at usel:/usr/local/nagios/libexec> ./check_nrpe -H test_server_1 -c
check_load OK - load average: 1.09, 1.04,
1.01|load1=1.090;15.000;30.000;0; load5=1.040;10.000;25.000;0;
load15=1.010;5.000;20.000;0; 

Can you run the command and post the output if you are still getting
problems?

Have you turned on debugging on the nrpe.cfg file and looked at the
output when you have ran the command. This is very helpful diagnostic
tool.

Here is the output from /var/log/messages with debug turned on in
nrpe.cfg

May  2 09:59:34 h12oiap nrpe[4469]: Host is asking for command
'check_load' to be run...
May  2 09:59:34 h12oiap nrpe[4469]: Running command:
/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 May  2
09:59:34 h12oiap nrpe[4469]: Command completed with return code 0 and
output: OK - load average: 0.17, 0.15, 0.10|load1=0.170;15.000;30.000;0;
load5=0.150;10.000;25.000;0; load15=0.100;5.000;20.000;0; May  2
09:59:34 h12oiap nrpe[4469]: Return Code: 0, Output: OK - load
average: 0.17, 0.15, 0.10|load1=0.170;15.000;30.000;0;
load5=0.150;10.000;25.000;0; load15=0.100;5.000;20.000;0;

What do you get when you run yours?

Regards

Tom

-----Original Message-----
From: yu-ting_liu at agilent.com [mailto:yu-ting_liu at agilent.com]
Sent: 02 May 2007 09:50
To: Welsh,T,Tom,XSL4A C
Cc: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] NRPE: Command 'check_swap' not defined

Hi, all, 

I just manually run command for testing purpose on my monitor server:

	/usr/local/nagios/check_nrpe -H remote_host_name -c check_load

I've not configured it in Nagios configuration files yet.

Regards,

Yu Ting

-----Original Message-----
From: tom.welsh at bt.com [mailto:tom.welsh at bt.com]
Sent: Wednesday, May 02, 2007 4:36 PM
To: yu-ting_liu at agilent.com; nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] NRPE: Command 'check_swap' not defined

Is the check load command specified on the nagios monitoring box

Here is how my config is defined.

Remote nrpe box. /usr/local/etc/nrpe.cfg

command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c
30,25,20

>From nagios monitoring box. /usr/local/nagios/etc/checkcommands.cfg

# ' check load on remote systems using nrpe define command{
        command_name    check_nrpe_load
        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }

This works fine for me.

Regards

Tom



-----Original Message-----
From: nagios-users-bounces at lists.sourceforge.net
[mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of
yu-ting_liu at agilent.com
Sent: 02 May 2007 09:26
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] NRPE: Command 'check_swap' not defined

Hi, 

I've run into following NRPE issue. 

	NRPE: Command 'check_load' not defined

I've checked my remote client nrpe.cfg and the command definition is
properly configured there.

	command[check_load]=/usr/local/nagios/libexec/check_load -w
15,10,5 -c 30,25,20
	...

Does anybody know what reason else can cause such issue? Thanks in
advance.

Regards, 

Yu Ting 


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