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#!/bin/sh
#
# Copyright (C) 2006 Benjamin Schweizer. All rights reserved.
#
#
# Abstract
# ~~~~~~~~
# munin plugin that logs the cache efficiency
#
# Authors
# ~~~~~~~
# Benjamin Schweizer <code at benjamin-schweizer dot de>
# duritong <peter.meier at immerda.ch>
#
# Changes
# ~~~~~~~
# 2008-07-24, duritong: added netcat lookup
# 2006-11-16, schweizer: removed 5 minutes stats, fixed 5% bug
# 2006-10-26, schweizer: excluded negative values from result
# 2006-10-11, schweizer: initial release.
#
# Todo
# ~~~~
# - we'll see
#
#%# family=auto
#%# capabilities=autoconf
NETCAT='/bin/netcat'
if [ ! -e $NETCAT ]; then
NETCAT='/usr/bin/nc'
fi
if [ "$1" = "autoconf" ]; then
SQUID_STATS=`printf "GET cache_object://localhost/info HTTP/1.0\n\n" | ${NETCAT} localhost 3128`
if [ -n "${SQUID_STATS}" ]; then
echo yes
exit 0
else
echo "no (HTTP GET failed)"
exit 1
fi
fi
if [ "$1" = "config" ]; then
echo 'graph_title Squid Efficiency'
echo 'graph_info This graph shows the proxy efficiency.'
echo 'graph_category squid'
echo "graph_args --lower-limit 0 --upper-limit 100"
echo 'graph_vlabel %'
echo 'request.label request hit'
echo 'byte.label byte hit'
exit 0
fi
SQUID_STATS=`printf "GET cache_object://localhost/info HTTP/1.0\n\n" | ${NETCAT} localhost 3128`
# Request Hit Ratios: 5min: 0.0%, 60min: 17.4%
# Byte Hit Ratios: 5min: 75.0%, 60min: 12.0%
SQUID_REQUEST_HIT=`echo "$SQUID_STATS" | grep "Request Hit Ratios" | cut -d ":" -f4 | cut -d "." -f1 | xargs echo`
if [ ${SQUID_REQUEST_HIT} -lt 1 ]; then SQUID_REQUEST_HIT=0; fi
SQUID_BYTE_HIT=`echo "$SQUID_STATS" | grep "Byte Hit Ratios" | cut -d ":" -f4 | cut -d "." -f1 | xargs echo`
if [ ${SQUID_BYTE_HIT} -lt 1 ]; then SQUID_BYTE_HIT=0; fi
echo "request.value ${SQUID_REQUEST_HIT}"
echo "byte.value ${SQUID_BYTE_HIT}"
# eof.
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