2007-05-22 09:35:26 +02:00
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#!/bin/bash
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#
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# Script to monitor PowerDNS performance
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#
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# Parameters understood:
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#
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# config (required)
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# autoconf (optional - used by munin-config)
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#%# family=auto
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#%# capabilities=autoconf
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command="/etc/init.d/pdns show"
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state_file=/var/lib/munin/plugin-state/pdns_rel.state
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if [ "$1" = "autoconf" ]; then
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echo yes
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exit 0
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fi
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if [ "$1" = "config" ]; then
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echo 'graph_title Power DNS Packet Cache Performance'
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echo 'graph_args -l 0 --upper-limit 100 --base 1000'
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echo 'graph_vlabel %'
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2017-02-22 00:30:20 +01:00
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echo 'graph_category dns'
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2007-05-22 09:35:26 +02:00
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echo 'graph_info This graph shows the Power DNS packet cache performance on the machine.'
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echo 'packetcache_hitrate.label packet cache hitrate'
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echo 'packetcache_hitrate.type GAUGE'
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echo 'packetcache_hitrate.min 0'
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echo 'packetcache_hitrate.max 100'
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echo 'packetcache_hitrate.info Hits on the packets cache'
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exit 0
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fi
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hits=$($command packetcache-hit | awk -F= '{print $2}')
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queries=$($command udp-queries | awk -F= '{print $2}')
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old_hits=$(cat $state_file | head -n1)
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old_queries=$(cat $state_file | tail -n1)
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if [ -f $state_file ] && [ $(ls -l --time-style=+%s $state_file | awk '{print $6}') -gt $(date --date="7 minutes ago" +%s) ] ; then
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d_hits=$(($hits - $old_hits))
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d_queries=$(($queries - $old_queries))
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if [ $d_queries -gt 0 ] ; then
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echo packetcache_hitrate.value $(( $d_hits * 100 / $d_queries ))
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fi
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fi
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echo $hits > $state_file
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echo $queries >> $state_file
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