Nagios Grapher

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Not reviewed:
This howto or contrib has not been reviewed and might contain code that could harm your installation. For more information on the review process have a look at the Development Review page.

Contents

[edit] Maintainer

Michael Weinberger


[edit] Introduction

The Nagios Grapher is a Nagios addon that collects performance data and represents these as graphs. Read more...

This contrib installs the Netways Nagios Grapher v1.6.1-rc5 and requires Nagios installed, configured properly and running.

Image:Nagiosgrapher.jpg NagiosGrapher serverroom temperatures graphic screenshot

[edit] Download

Download the RPM from http://mirror.contribs.org/smeserver/contribs/michaelw/sme7/nagiosgrapher

[edit] Installation

[edit] Configure the dag repositoy

The following command will configure the dag repository on SME Server. 

/sbin/e-smith/db yum_repositories set dag repository \
Name 'Dag - EL4' \
BaseURL 'http://apt.sw.be/redhat/el4/en/$basearch/dag' \
EnableGroups no \
GPGCheck yes \
GPGKey http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt \
Visible no \
Exclude freetype,htop,iptraf,rsync,syslinux \
status disabled

After adding it to the database we have to update the changes to the configuration file: 

expand-template /etc/yum.conf

[edit] Installation of the Nagios Grapher package 

/usr/bin/yum --enablerepo=dag localinstall smeserver-nagiosgrapher-*-0.noarch.rpm


[edit] Configuration

You need to edit serveral configuration files:

in /etc/nagios/nagios.cfg add/modify 

cfg_dir=/etc/nagios/serviceext
process_performance_data=1
service_perfdata_command=process-service-perfdata

in /etc/nagios/commands.cfg add/modify 

define command {
  command_name   process-service-perfdata
  command_line   /usr/share/nagios/fifo_write.pl /var/log/nagios/rw/ngraph.pipe '$HOSTNAME$\t$SERVICEDESC$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n' 3
}

Create files in /etc/nagios/ngraph.d to configure the graphs. You may use the files in /etc/nagios/ngraph.d/samples/ as a starting point. Also consult the documentations in /usr/share/nagios/nagiosgrapher/doc/CONFIG and the links listed in the References section below.

This contribs has the file /etc/nagios/ngraph.d/cpuload.ncfg included which generates a graph for service definitons where the service descriptions contains the word "load". This works 'out of the box'.

Finally restart the services: 

service nagiosgrapher restart
service nagios restart

[edit] Uninstall

This removes the installed NagiosGrapher package. 

/usr/bin/yum erase smeserver-nagiosgrapher

[edit] References

Retrieved from "http://wiki.contribs.org/Nagios_Grapher"
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