#!/bin/bash PATH=/opt/rrdtool/bin:$PATH:/sbin:/usr/sbin data_dir="/var/statistiky/arp" mkdir -p $data_dir cd ${data_dir} config_file=/opt/statistiky/collect_arp.conf function create() { local filename=$1 echo " creating new arp2.rrd" # zakladem je krok 5 sekund # petiminutove useky se pocitaji z 60 PDP (primary data points) (12 za minutu * 5 minut) # vsechny RRA se pocitaji primo z PDP, tj. dvouhodinove useky se pocitaji z 240 PDP # za posledni tyden chceme 5minutove useky udaje => 12*24*9 = 2592 radku # za posledni mesic chceme 20minutove useky => 3*24*38 = 2736 radku # za posledni rok chceme dvouhodinove useky => 12*400 = 4800 radku rrdtool create ${filename}.rrd --step 5 --start `date +%s` \ DS:count:GAUGE:10:0:100 \ RRA:AVERAGE:0.7:1:1440 \ RRA:MAX:0.7:4:2880 \ RRA:MIN:0.7:4:2880 \ RRA:AVERAGE:0.7:4:2880 \ RRA:MAX:0.7:60:2592 \ RRA:MIN:0.7:60:2592 \ RRA:AVERAGE:0.7:60:2592 \ RRA:MAX:0.7:240:2736 \ RRA:MIN:0.7:240:2736 \ RRA:AVERAGE:0.7:240:2736 \ RRA:MAX:0.7:1440:4800 \ RRA:MIN:0.7:1440:4800 \ RRA:AVERAGE:0.7:1440:4800 } function wait_to() # $1 date for waiting to { local time_now=`date +%s`; while [ $time_now -lt $1 ] do time_now=`date +%s` sleep 1; done } echo "Looking for arp.rrd" if [ ! -f arp.rrd ] ; then create arp fi sleep 2; start_time=`date +%s` interval=$(( $start_time / 5 * 5 + 5 )) while [ true ] do . ${config_file} echo "Wait to $interval" wait_to $interval timenow=`date +%s` echo "Time now: `date +%s`" count="0" for net_dev in $DEVICES do count_dev=$(( `arp -n -i $net_dev | grep ether | grep -v "192.168" | wc -l` + 0 )) echo " items in arp table $net_dev: $count_dev" let count+=$count_dev done echo "All items in arp table : $count" if [ ! -z "${count}" ] then rrdtool update arp.rrd $timenow:$count fi interval=$(( $interval + 5 )) done
WebSVN - crusader - Blame - Rev 1 - /trunk/statistiky/opt/statistiky/collect_arp.sh
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