mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
113 lines
3.1 KiB
Bash
Executable File
113 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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. "$MUNIN_LIBDIR/plugins/plugin.sh"
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: <<=cut
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=head1 NAME
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multibandwidth - Plugin to monitor the bandwidth between localhost and serveral hosts.
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=head1 APPLICABLE SYSTEMS
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All systems with “bash”, and “munin”
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=head1 REQUIREMENTS
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bing installed.
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You can install bing by using (Ubuntu/Debian): apt-get install bing
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=head1 CONFIGURATION
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The following is the default configuration
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[multibandwidth]
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user root
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env.hosts example.org example2.org example3.org
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env.samples 10
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env.small_packet_size 44
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env.big_packet_size 108
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- env.hosts explanation: hostname or IP of the hosts to calculate the bandwidth.
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- env.samples explanation: Reset stats after sending samples ECHO_REQUEST packets.
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- env.small_packet_size explanation: Specifies the number of data bytes to be sent in the small
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packets. The default and minimum value is 44.
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- env.big_packet_size explanation: Specifies the number of data bytes to be sent in the big
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packets. The default is 108. The size should be chosen so that big packet roundtrip times
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are long enough to be accurately measured.
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=head1 MAGIC MARKERS
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#%# capabilities=autoconf
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=head1 VERSION
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1.1.17
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=head1 AUTHOR
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Jose Manuel Febrer Cortés <https://www.linkedin.com/in/jfebrer/>
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Marco Bertola’s help <https://www.linkedin.com/in/bertolamarco/>
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=head1 LICENSE
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GPLv2
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=cut
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case $1 in
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config)
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echo graph_title MultiBandwidth
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echo 'graph_vlabel bps'
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echo 'graph_args --base 1024 -l 0'
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echo 'graph_scale yes'
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echo 'graph_category network'
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echo 'graph_info This graph shows the bandwidth between localhost and serveral hosts'
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for host in $hosts; do
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fieldname="host_$(clean_fieldname "$host")"
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echo "$fieldname.label $host"
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echo "$fieldname.draw LINE2"
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echo "$fieldname.info Bandwidth statistics for $host"
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done
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exit 0;;
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autoconf)
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if command -v bing >/dev/null 2>&1; then
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echo 'yes'
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exit 0;
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else
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echo 'no (bing not installed)'
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exit 0;
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fi
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esac
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#Calculating the bandwidth
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for host in $hosts; do
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fieldname="host_$(clean_fieldname "$host")"
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printf "$fieldname.value ";
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SPEED=$(timeout 6 bing localhost "$host" -n -c 1 -e "$samples" -s "$small_packet_size" -S "$big_packet_size" 2>/dev/null \
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|grep "estimated link" -A 2 \
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| grep bps \
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| awk '{print $2}' \
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| cut -d "b" -f1)
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if (echo "$SPEED" | grep -q "M"); then
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echo "$SPEED" | awk '{a+=$1} END{print a*1000000}'
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elif (echo "$SPEED" | grep -q "K"); then
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echo "$SPEED" | awk '{a+=$1} END{print a*1000}'
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elif (echo "$SPEED" | grep -q "G"); then
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echo "$SPEED" | awk '{a+=$1} END{print a*1000000000}'
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else
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echo "Error: no data (timeout)" >&2
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fi
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done
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