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Initial version
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plugins/other/squid_efficiency
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103
plugins/other/squid_efficiency
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#!/bin/bash
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#
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# Copyright (C) 2006-2009 Benjamin Schweizer. All rights reserved.
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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#
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# Abstract
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# ~~~~~~~~
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# This is a plugin for the munin monitoring system. It graphs the cache
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# efficiency of your squid proxy servers and shows nice graphs for average
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# byte and request hits.
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#
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# Authors
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# ~~~~~~~
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# Benjamin Schweizer, http://benjamin-schweizer.de/contact
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#
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# Changes
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# ~~~~~~~
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# 2009-11-25, volker: added config options and docs
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# 2009-11-19, benjamin: fixed squid3 compatibility, minor rewrite
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# 2006-11-16, benjamin: removed 5 minutes stats, fixed 5% bug
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# 2006-10-26, benjamin: excluded negative values from result
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# 2006-10-11, benjamin: initial release.
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#
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# Todo
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# ~~~~
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# - we'll see
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#
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# Munin:
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#%# family=auto
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#%# capabilities=autoconf
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#
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# Config
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# ~~~~~~
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# This plugin supports munin-autoconf, but you might need to change the host
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# and port according to your actual setup. You can overwrite the defaults
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# in your node config (/etc/munin/plugin-conf.d/) like this:
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#
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# [squid_efficiency]
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# env.squidhost yourhost.example.com
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# env.squidport 8080
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#
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host=${squidhost:-localhost}
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port=${squidport:-3128}
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test "$1" = "autoconf" && {
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which netcat > /dev/null || {
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echo "netcat binary not found"
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exit 1
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}
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DUMP=`printf "GET cache_object://$host/info HTTP/1.0\n\n" | netcat $host $port`
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test -n "$DUMP" || {
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echo "http response empty"
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exit 1
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}
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echo "yes"
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exit 0
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}
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test "$1" = "config" && {
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echo 'graph_title Squid Efficiency'
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echo 'graph_info This graph shows the proxy efficiency.'
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echo 'graph_category squid'
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echo "graph_args --lower-limit 0 --upper-limit 100"
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echo 'graph_vlabel %'
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echo 'request.label request hits'
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echo 'byte.label byte hits'
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exit 0
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}
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DUMP=`printf "GET cache_object://$host/info HTTP/1.0\n\n" | netcat $host $port`
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# squid2
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# Request Hit Ratios: 5min: 0.0%, 60min: 17.4%
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# Byte Hit Ratios: 5min: 75.0%, 60min: 12.0%
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# squid3
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# Hits as % of all requests: 5min: 0.0%, 60min: 0.0%
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# Hits as % of bytes sent: 5min: 100.0%, 60min: 100.0%
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test -n "$DUMP" || {
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echo "http response empty"
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exit 1
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}
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REQUEST_HITS=`echo "$DUMP" | grep -E "Request Hit Ratios|Hits as % of all requests" | cut -d ":" -f4 | cut -d "." -f1 | xargs echo`
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test $REQUEST_HITS -gt 0 || REQUEST_HITS=0
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BYTE_HITS=`echo "$DUMP" | grep -E "Byte Hit Ratios|Hits as % of bytes sent" | cut -d ":" -f4 | cut -d "." -f1 | xargs echo`
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test $BYTE_HITS -gt 0 || BYTE_HITS=0
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echo "request.value ${REQUEST_HITS}"
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echo "byte.value ${BYTE_HITS}"
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# eof.
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