Nagios Grapher

Maintainer

Michael Weinberger

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.

NagiosGrapher serverroom temperatures graphic screenshot

Download

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

Installation

Configure the dag repositoy

The following command will configure the dag repository on SME Server. EDIT NOT COMPLETE!

To create an entry in the database for the epel repository we open put the following commands in a terminal window or in a shell window:

/sbin/e-smith/db yum_repositories set epel repository \

Name 'SME Server - epel' \
BaseURL 'http://<http://download.fedoraproject.org/pub/epel/7/$basearch' \
EnableGroups yes \
GPGCheck yes \
Visible no \
status disabled

To enable the changes:

    signal-event yum-modify

Just to be sure, give yum a fresh start:

    yum clean all

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

signal-event yum-modify

Installation of the Nagios Grapher package

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

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

Uninstall

This removes the installed NagiosGrapher package.

/usr/bin/yum erase smeserver-nagiosgrapher

References

• Nagios Grapher homepage: http://www.nagiosexchange.org/NagiosGrapher.84.0.html
• Nagios Grapher download; http://www.nagiosexchange.org/Charts.42.0.html?&tx_netnagext_pi1%5Bp_view%5D=195
• Nagios Grapher mentioned a Nagios book: "Nagios : system and network monitoring / Wolfgang Barth / ISBN 1-59327-070-4", Chapter 17.5
• A German HowTo: http://www.nagios-wiki.de/doku.php/nagios/howtos/nagiosgrapher
• Nagios Grapher on netways.de http://www.netways.de/nc/de/produkte/nagios/integrationsloesungen/nagiosgrapher/?sword_list%5B%5D=nagiosgrapher

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