LinuxQuestions.org - [SOLVED] Root partition warning

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Root partition warning

Hello all,

I am running Nagios on CentOS. Everything is working fine, all my clients status is ok. One thing which is confusing me is "Root Partition WARNING" on my own server which has Nagios installed.

I think that these things are controlled by nrpe, which is installed in clients servers. what i want to know is how i manage my own server, in which config files i have to make changes?

Kind Regards,

Shahnawaz Uqaili

Without knowing your cfg files and how you organized hosts and services, we can't answer your question. what are the cfg files you have on nagios?

Thanks kirukan for replying.

cfg file of nagios server has warning if disk is 20% and critical if disk is 10% .

My question is should i increase these values or from somewhere else? As nrpe is not installed in Nagios server.

This is the way, organized in my environment ....
hosts.cfg

Code:

# Generic host definition template - This is NOT a real host, just a template!



define host{

        name                            generic-host    ; The name of this host template

        notifications_enabled          1      ; Host notifications are enabled

        event_handler_enabled          1      ; Host event handler is enabled

        flap_detection_enabled          1      ; Flap detection is enabled

        failure_prediction_enabled      1      ; Failure prediction is enabled

        process_perf_data              1      ; Process performance data

        retain_status_information      1      ; Retain status information across program restarts

        retain_nonstatus_information    1      ; Retain non-status information across program restarts

        register                        0      ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!

        }





# Since this is a simple configuration file, we only monitor one host - the

# local host (this machine).



define host{

        use                    generic-host            ; Name of host template to use

        host_name              RedHatLinux

        alias                  rax.wavex.com      ; localhost.localhostdomain

        address                127.0.0.1

        check_command          check-host-alive

        max_check_attempts      10

        check_period            24x7

        notification_interval  120

        notification_period    24x7

        notification_options    d,r

        contact_groups          nagicmd

        }

services.cfg

Code:

#***********************************************************************************************

# Define a service to check the disk space of the root partition

# on the local machine.  Warning if < 20% free, critical if

# < 10% free space on partition.



define service{

        use                            generic-service        ; Name of service template to use

        host_name                      RedHatLinux

        service_description            Root Partition

        is_volatile                    0

        check_period                    24x7

        max_check_attempts              4

        normal_check_interval          5

        retry_check_interval            1

        contact_groups                  nagicmd

        notification_options            w,u,c,r

        notification_interval          960

        notification_period            24x7

        check_command                  check_local_disk!10%!5%!/dev/hda7

        }

Check_commands.cfg

Code:

# 'check_local_disk' command definition

define command{

        command_name    check_local_disk

        command_line    $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$

        }

Local server itself you don't need NRPE

Quote:

Originally Posted by Shahnawaz Uqaili (Post 4377618)

if it is controlled by NRPE (which i doubt) then check your config files and search for this (on the monitoring host):

Code:

define command{

use              template

check_command    check_nrpe!check_disk!10!20

}

or something like that!
and if you don't find anything like that, NRPE is not used to check your disk usage.

and when you ask that you would like to increase the values, imo we can't answer to that, because everyone has other configs concerning that, it's up to you to decide when Nagios should send a notification to someone

Quote:

Originally Posted by kirukan (Post 4377622)

Local server itself you don't need NRPE

It's like Kirukan says, when you check on your LOCAL server, you don't need to use/install NRPE
Only when you want to execute plugins on REMOTE servers.

My nagiosserver.cfg

define service{
use local-service ; Name of service template to use
host_name mydomain.com
service_description Root Partition
check_command check_local_disk!20%!10%!

Should i increase this?

check_command check_local_disk!20%!10%!

Quote:

check_command check_local_disk!20%!10%!/

I think, Instead of "!/", you have to define "/dev/xxx", just check which partition mounted with root

Quote:

Originally Posted by Shahnawaz Uqaili (Post 4377628)

with this we see that NRPE isn't being used.
Like i said, everyone has another reason to use check_local_disk so everyone has another setting (and another reason to config that plugin in a certain way).
Just see for yourself what is the best setting. Do you want to notified when only 5% is left or 80% left,... it just depends...

Thanks for your help brownie_cookie & kirukan

I may now manage my server.

Thanks a lot

no problem ;)
if you have any more problems with Nagios, feel free to pm me or make a new thread
there are many people on LQ that have experience with Nagios

if you are satisfied with your answer or solution, please mark this thread as solved ;)

have a nice day

:hattip:

Thanks brownie_cookie

no problem :p

yeah, my 400th post xD

Quote:

Originally Posted by brownie_cookie (Post 4377685)

no problem :p

yeah, my 400th post xD

and mine 30th ;)

When my status will become MEMBER? ;) :p

---------- Post added 06-06-11 at 05:40 PM ----------

Ohhhhhh I became a Member :D :D