mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
a1cc26f2d3
bing have some random spikes. Added a variable that is used to indicate the maximum value of mbps that can be recorded (in bps).
125 lines
10 KiB
Bash
Executable File
125 lines
10 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 15
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env.small_packet_size 44
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env.big_packet_size 108
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env.max_mbps 15728640
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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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- env.max_mbps explanation: bing have some random spikes. This variable is used to indicate
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the maximum value of mbps that can be recorded (in bps).
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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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VALUE=`echo "$SPEED" | sed 's/.$//'`
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RATE=`echo "$VALUE * 1048576" | bc -l`
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if [ $(echo "$RATE" >= "$max_mbps" | bc >/dev/null && echo "no" || echo "yes") = "yes" ]; then
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echo "$max_mbps"
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else
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echo "$RATE"
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fi
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elif (echo "$SPEED" | grep -q "K"); then
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VALUE=`echo "$SPEED" | sed 's/.$//'`
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echo "$VALUE * 1024" | bc -l
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elif (echo "$SPEED" | grep -q "G"); then
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VALUE=`echo "$SPEED" | sed 's/.$//'`
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echo "$VALUE * 1073742000" | bc -l
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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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