| 1 | 1 | simandl | #!/bin/bash |
| 2 | | | |
| 3 | | | PATH=/opt/rrdtool/bin:$PATH:/sbin:/usr/sbin |
| 4 | | | |
| 5 | | | data_dir="/var/statistiky/arp" |
| 6 | | | mkdir -p $data_dir |
| 7 | | | |
| 8 | | | cd ${data_dir} |
| 9 | | | |
| 10 | | | config_file=/opt/statistiky/collect_arp.conf |
| 11 | | | |
| 12 | | | function create() |
| 13 | | | { |
| 14 | | | local filename=$1 |
| 15 | | | echo " creating new arp2.rrd" |
| 16 | | | |
| 17 | | | # zakladem je krok 5 sekund |
| 18 | | | # petiminutove useky se pocitaji z 60 PDP (primary data points) (12 za minutu * 5 minut) |
| 19 | | | # vsechny RRA se pocitaji primo z PDP, tj. dvouhodinove useky se pocitaji z 240 PDP |
| 20 | | | # za posledni tyden chceme 5minutove useky udaje => 12*24*9 = 2592 radku |
| 21 | | | # za posledni mesic chceme 20minutove useky => 3*24*38 = 2736 radku |
| 22 | | | # za posledni rok chceme dvouhodinove useky => 12*400 = 4800 radku |
| 23 | | | rrdtool create ${filename}.rrd --step 5 --start `date +%s` \ |
| 24 | | | DS:count:GAUGE:10:0:100 \ |
| 25 | | | RRA:AVERAGE:0.7:1:1440 \ |
| 26 | | | RRA:MAX:0.7:4:2880 \ |
| 27 | | | RRA:MIN:0.7:4:2880 \ |
| 28 | | | RRA:AVERAGE:0.7:4:2880 \ |
| 29 | | | RRA:MAX:0.7:60:2592 \ |
| 30 | | | RRA:MIN:0.7:60:2592 \ |
| 31 | | | RRA:AVERAGE:0.7:60:2592 \ |
| 32 | | | RRA:MAX:0.7:240:2736 \ |
| 33 | | | RRA:MIN:0.7:240:2736 \ |
| 34 | | | RRA:AVERAGE:0.7:240:2736 \ |
| 35 | | | RRA:MAX:0.7:1440:4800 \ |
| 36 | | | RRA:MIN:0.7:1440:4800 \ |
| 37 | | | RRA:AVERAGE:0.7:1440:4800 |
| 38 | | | |
| 39 | | | } |
| 40 | | | |
| 41 | | | function wait_to() |
| 42 | | | # $1 date for waiting to |
| 43 | | | { |
| 44 | | | local time_now=`date +%s`; |
| 45 | | | while [ $time_now -lt $1 ] |
| 46 | | | do |
| 47 | | | time_now=`date +%s` |
| 48 | | | sleep 1; |
| 49 | | | done |
| 50 | | | } |
| 51 | | | |
| 52 | | | echo "Looking for arp.rrd" |
| 53 | | | if [ ! -f arp.rrd ] ; then |
| 54 | | | create arp |
| 55 | | | fi |
| 56 | | | sleep 2; |
| 57 | | | |
| 58 | | | |
| 59 | | | start_time=`date +%s` |
| 60 | | | interval=$(( $start_time / 5 * 5 + 5 )) |
| 61 | | | |
| 62 | | | while [ true ] |
| 63 | | | do |
| 64 | | | . ${config_file} |
| 65 | | | |
| 66 | | | echo "Wait to $interval" |
| 67 | | | wait_to $interval |
| 68 | | | timenow=`date +%s` |
| 69 | | | echo "Time now: `date +%s`" |
| 70 | | | |
| 71 | | | count="0" |
| 72 | | | for net_dev in $DEVICES |
| 73 | | | do |
| 74 | | | count_dev=$(( `arp -n -i $net_dev | grep ether | grep -v "192.168" | wc -l` + 0 )) |
| 75 | | | echo " items in arp table $net_dev: $count_dev" |
| 76 | | | let count+=$count_dev |
| 77 | | | done |
| 78 | | | echo "All items in arp table : $count" |
| 79 | | | |
| 80 | | | |
| 81 | | | if [ ! -z "${count}" ] |
| 82 | | | then |
| 83 | | | rrdtool update arp.rrd $timenow:$count |
| 84 | | | fi |
| 85 | | | |
| 86 | | | interval=$(( $interval + 5 )) |
| 87 | | | |
| 88 | | | done |
| 89 | | | |
