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- #!/bin/bash
- #munin plugin for ram usage monitoring of minetestserver for given port
- #author: Ritchie
- #thanks Pitriss for advices
- #inspired by plugin minecraft-users-ram_
- #https://github.com/munin-monitoring/contrib/blob/master/plugins/minecraft/minecraft-users-ram_
- #Author & instructions: http://wiki.natenom.name/minecraft/munin-plugin
- LC_LANG=C
- MT_PORT=${0##*_}
- if [ "$1" = "config" ]
- then
- printf 'graph_title Minetestserver memory usage (Port %s)\n' ${MT_PORT}
- printf 'graph_vlabel MiB\n'
- printf 'ramusage.label memory usage\n'
- printf 'graph_category minetest'
- # printf 'graph_info Shows RAM usage by minetestserver process'
- exit 0
- fi
- MT_PID=$(netstat -ulpn 2>/dev/null | grep ${MT_PORT} | sed -n -e '1p' | awk '{ print $6 }' | cut -d'/' -f1)
- if [ ! -z "${MT_PID}" ]
- then #is running
- # MEMORYRSS=$(ps v ${MT_PID} | awk '{print $8}' | tail -n1)
- MEMORYRSS=$(cat /proc/${MT_PID}/status | grep RSS | awk '{print $2}')
- MEMMiB=$(echo "scale=2;${MEMORYRSS}/1024" | bc -l)
- else
- MEMMiB=0
- fi
- printf "ramusage.value %3.2f\n" "${MEMMiB}"
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