64 lines
1.4 KiB
Bash
Executable File
64 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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: <<=cut
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=head1 NAME
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minecraft-users-ram_ - monitor ressource usage of a local minecraft server
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=head1 APPLICABLE SYSTEMS
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Every system with a running minecraft server.
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=head1 USAGE
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Symlink this plugin to /etc/munin/plugins/ by adding the TCP port number used
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by the local mincecraft server. Afterwards restart the munin-node.
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Some more instructions: http://wiki.natenom.name/minecraft/munin-plugin
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=head1 AUTHOR
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2011 Natenom
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2017 Leandro Späth
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=head1 MAGIC MARKERS
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#%# family=manual
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#%# capabilities=
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=cut
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MC_PORT=${0##*_}
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if [ "$1" = "config" ]
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then
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echo "graph_title Minecraft-Server (Port $MC_PORT)"
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echo 'graph_category games'
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echo 'graph_scale no'
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echo 'graph_vlabel Players / RAM / CPU'
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echo 'users.label Players'
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echo 'ramusage.label RAM usage in GiB'
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echo 'cpuusage.label CPU usage'
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exit 0
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fi
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PLAYERCOUNT=$(LC_LANG=C netstat -tn | grep ":$MC_PORT " | grep ESTABLISHED | wc -l)
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MC_PID=$(netstat -tlpn | grep ":$MC_PORT " | sed -n -e '1p' | awk '{ print $7 }' | cut -d '/' -f1)
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if [ -n "${MC_PID}" ]
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then #is running
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MEMGiB=$(ps -p "$MC_PID" -o rss | sed -n '2p' | awk '{ print $1 / 1024 / 1024 }')
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CPU=$(top -bp "$MC_PID" -n 1 | sed -n '$p' | awk '{ print $10 / 100; }')
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else
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MEMGiB="U"
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CPU="U"
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fi
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echo "users.value $PLAYERCOUNT"
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echo "ramusage.value $MEMGiB"
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echo "cpuusage.value $CPU"
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