mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
57 lines
1.7 KiB
Bash
Executable File
57 lines
1.7 KiB
Bash
Executable File
#!/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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pdns_control="/usr/bin/pdns_control"
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command="$pdns_control show"
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state_file=$MUNIN_PLUGSTATE/pdns_rel.state
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if [ "$1" = "autoconf" ]; then
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if [ -e "$pdns_control" ]; then
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echo yes
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exit 0
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else
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echo "no (missing $pdns_control)"
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exit 0
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fi
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fi
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if [ "$1" = "config" ]; then
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echo 'graph_title Power DNS Packet Cache Performance'
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echo 'graph_args -l 0 --upper-limit 100 --base 1000'
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echo 'graph_vlabel %'
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echo 'graph_category dns'
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echo 'graph_info This graph shows the Power DNS packet cache performance on the machine.'
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echo 'packetcache_hitrate.label packet cache hitrate'
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echo 'packetcache_hitrate.type GAUGE'
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echo 'packetcache_hitrate.min 0'
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echo 'packetcache_hitrate.max 100'
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echo 'packetcache_hitrate.info Hits on the packets cache'
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exit 0
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fi
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hits=$($command packetcache-hit)
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queries=$($command udp-queries)
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if [ -f "$state_file" ]; then
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old_hits=$(head -n1 "$state_file")
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old_queries=$(tail -n1 "$state_file")
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fi
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if [ -f "$state_file" ] && [ "$(stat --format=%Y "$state_file")" -gt "$(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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