From Micah Anderson <micah@riseup.net>:
I have modified the distributed ping_ plugin to be a little more
useful for monitoring. You can now add to your munin.conf something
similar to the following:
[ping_]
env.host www.google.com www.yahoo.com www.someother.host
and the plugin will ping each of these hosts, instead of just one.
This modification is incredibly useful if you are interested in using
munin to monitor hosts and alert if one is unavailable to the network.
micah
#!/bin/sh
#
# Copyright (C) 2004 Jimmy Olsen
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2 dated June,
# 1991.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
# Plugin to monitor ping times
#
# Parameters:
#
# ping_args - Arguments to ping (default "-c 2")
# ping_args2 - Arguments after the host name (required for Solaris)
# ping - Ping program to use
# host - Host to ping
#
# Arguments for Solaris:
# ping_args -s
# ping_args2 56 2
#
# Configuration example
# [ping_]
# env.host www.google.com www.yahoo.com
#
#
#%# family=manual
if [ -z "$host" ]; then
file_host=`basename $0 | sed 's/^ping_//g'`
host=${host:-${file_host:-www.google.com}}
fi
if [ "$1" = "config" ]; then
echo graph_title Ping times
echo 'graph_args --base 1000 -l 0'
echo 'graph_vlabel seconds'
echo 'graph_category network'
echo 'graph_info This graph shows ping RTT statistics.'
for hosts in $host; do
site=`expr $site + 1`
echo "site$site.label $hosts"
echo "site$site.info Ping RTT statistics for $hosts."
echo "site$site.draw LINE2"
echo "site${site}_packetloss.label $hosts packet loss"
echo "site${site}_packetloss.graph no"
done
exit 0
fi
for hosts in $host
do
export site=`expr $site + 1`
${ping:-ping} ${ping_args:-'-c 2'} ${hosts} ${ping_args2} \
| perl -n -e 'print "site$ENV{'site'}.value ", $1 / 1000, "\n"
if m@min/avg/max.*\s\d+(?:\.\d+)?/(\d+(?:\.\d+)?)/\d+(?:\.\d+)?@;
print "packetloss.value $1\n" if /(\d+)% packet loss/;'
done
