i installed check_diskio in remote host workiing CLI but i can not get in nagios web

parthipan · 08-22-2012, 12:05 AM

i have to manage disk io so i have installed check_diskio-3.2.4.tar.gz

it is working properly in CLI but i could not get into nagios web interface

what are the configurations i have to make change into
commands.cfg (define command)
remotehost.cfg ( define service)
nrpe.cfg

this is the output got from CLI

Quote:

[root@localhost Desktop]# /usr/local/nagios/libexec/check_nrpe -H 172.30.0.72 -c check_diskio
CHECK_DISKIO OK - sda 123.00 sectors/s | WRITE=123;4000;6000 READ=0;4000;6000 TOTAL=123;4000;6000

i have installed check_diskio-3.2.4.tar.gz through this steps

Quote:

At the Client Machine.

# yum install perl

# tar -zxvf check_diskio-3.2.2.tar.gz
# cd check_diskio-3.2.2

# less INSTALL (Read the INSTALL Readme file)
# perl Makefile.PL INSTALLSCRIPT=/usr/lib64/nagios/plugins
(You will see a list of warnings of prerequisites)

B. Install the prerequisites Perl-Modules. Here may not be completed lists.

# yum install perl-Nagios*
# yum install perl-List*
# yum install perl-Readonly*
# yum install perl-Number-Format
# yum install perl-File-Slurp*
# yum install perl-Array-Unique

C. Finally compile

# perl Makefile.PL INSTALLSCRIPT=/usr/lib64/nagios/plugins
# make
# make install
(You will see the check_diskio at /usr/lib64/nagios/plugins)

D. Edit the nrpe.cfg file on the client machine. If you have not download nagios nrpe plugins, just do a

# yum install nagios-nrpe

D1. Edit /etc/nagios/nrpe.cfg on the client machine,

# vim /etc/nagios/nrpe.cfg

command[check_diskio]=/usr/lib64/nagios/plugins/check_diskio --device=/dev/sda -w 200 -c 300

At the Server, just make sure you install the nagios nrpe plugins like D. Finally to ensure that the remote server plugins are ok, do a test at Nagios Server

# cd /usr/lib64/nagios/plugins

# ./check_nrpe -H remote-server -c check_diskio
CHECK_DISKIO OK - sda 194 sectors/s | WRITE=194;200;300 READ=0;200;300 TOTAL=194;200;3

please help me immediatly

sag47 · 08-22-2012, 08:34 PM

when you say

Quote:

commands.cfg (define command)
remotehost.cfg ( define service)

I assume you already created the definitions. Did you refresh or restart the Nagios service? If so what does the nagios log file say? Run a checkconfig, is the configuration OK?

parthipan · 08-22-2012, 11:59 PM

my web interface shows

Quote:

Disk IO CRITICAL 08-23-2012 10:12:26 2d 21h 41m 40s 4/4 (Return code of 127 is out of bounds - plugin may be missing)

i configured like this in my magios server machine

commands.cfg in client machine and servermachine

Code:

define command{
        command_name    check_diskio
        command_line    /usr/lib/nagios/plugins/contrib/check_diskio --device /dev/sda1 -w $ARG1$ -c $ARG2$
}

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

nrpe.cfg command

Code:

command[check_diskio]=/usr/lib/nagios/plugins/contrib/check_diskio -d /dev/sda1 -w 4000 -c 6000

my clientmachine.cfg
service definition

Code:

define service{
	use local-service
	host_name onal
	service_description Disk IO
	check_command check_diskio!20!50
	notifications_enabled 0
}

when i am executing my command through CLI
i provide

Code:

[root@localhost Desktop]# /usr/local/nagios/libexec/check_nrpe -H 172.30.0.72 -c check_diskio

i can get this output

Quote:

CHECK_DISKIO OK - sda 123.00 sectors/s | WRITE=123;4000;6000 READ=0;4000;6000 TOTAL=123;4000;6000
i have installed check_diskio-3.2.4.tar.gz through this steps

actually i m confusing now what are the configurations i have to make in client machin and server machine

please help me

sag47 · 08-23-2012, 09:59 AM

You need to have the plugin installed on the client machine. Define the command in nrpe.cfg like you did.

Then you must call the client plugin from the server in a service definition using the check_nrpe command.

Here's an example of what your service definition should look like.

Code:

define service{
	use local-service
	host_name onal
	service_description Disk IO
	check_command check_nrpe!check_diskio
	notifications_enabled 0
}

For more information about how check_nrpe works with the host look at this document.

Your nrpe must be successfully listening on the client machine. You can get rid of your command definition and check_diskio plugin on the server unless you want to actually perform that check on the local nagios server.

parthipan · 08-24-2012, 05:32 AM

oh amazing!

thank you so mutch sag47
it is working correctly...
cool

sag47 · 08-24-2012, 07:14 AM

Check out Icinga as well. It's 100% compatible with all Nagios plugins and extensions.