#!/bin/bash3 # # # 2005-11-27/Libor Predelano cteni seriaku. Ted si ho otevre jako filedescriptor # a cte z nej jako ze souboru. Na Marvinovi se tim (snad) uplne # odstranily chly do nuly, ktere byly nejspis zpusobeny # rychlosti (pomalosti) Marvina. (800MHz VIA C3) # 2005-11-02/Libor konfiguracni skripty na prehazovani primarni FSO <-> backup WiFi # logovani do /var/statistiky/crusader/crusader.log # bash3, nevim proc, ale na Marvinovi mi to s dvojkou nechodilo kvuliva # porovnavani desetinnych cisel pomoci if [ $neco -le $rss ]... # 2005-10-27/Libor pridano prehazovani na WiFi zalohu pri signalu < 300 # # if [ $# -eq 1 ]; then crusader_number=$1 fi if [ $# -gt 1 ]; then echo "ERROR: more than 1 option" >&2 fi if [ $# -lt 1 ]; then crusader_number=0 fi stat_dir="/var/statistiky/crusader" logfile="$stat_dir/crusader.log" mkdir -p $stat_dir config_file=/opt/statistiky/collect_crusader.conf script_set_main=/opt/statistiky/crusader_set_main.sh script_set_backup=/opt/statistiky/crusader_set_backup.sh function Log() # $1 ... message { timenow=`date +"%Y-%m-%d %T"` echo "$timenow $1" echo "$timenow $1" >>$logfile } Log "Crusader start =====" Log "Using config file: $config_file" if [ ! -f $config_file ] then Log "Missing config file $config_file, exiting." exit 1; fi if [ ! -x $script_set_main ]; then Log "Script set up main is not executable: $script_set_main" exit 1; fi if [ ! -x $script_set_backup ]; then Log "Script set up main is not executable: $script_set_backup" exit 1; fi cd $stat_dir function create() # $1 ... netdevice { local file=$1 Log "Creating RRD archive $file" # step = 5s # za posledni 2,5 hodiny chceme vsechny PDP => 2,5 * 3600 / 5 = 1800 hodnot/radku # 20s ~ agregace ze ctyr hodnot (PDP) # za poslednich 10 hodin chceme 20s udaje => 10*3600/20 = 1800 generaci/radku # za poslednich 30 hodin chceme 60s udaje => 30*3600/60 = 1800 generaci/radku # 5 minut = 12 PDP za minutu * 5 minut = 60 PDP # za posledni tyden (9dni) chceme 5minutove udaje => 12*24*9 = 2592 radku (rows) # 20min ~ agregace z 240 PDP # za posledni mesic (38dni) chceme 20minutove useky => 3*24*38 = 2736 radku # dve hodiny ~ 1440 PDP # za posledni rok chceme dvouhodinove useky => 12*400 = 4800 radku rrdtool create ${file}.rrd --step 5 --start `date +%s` \ DS:rss_avg:GAUGE:10:0:999 \ DS:rss_min:GAUGE:10:0:999 \ DS:rss_max:GAUGE:10:0:999 \ RRA:AVERAGE:0.7:1:1800 \ RRA:MAX:0.7:1:1800 \ RRA:MIN:0.7:1:1800 \ RRA:AVERAGE:0.7:4:2880 \ RRA:MAX:0.7:4:2880 \ RRA:MIN:0.7:4:2880 \ RRA:AVERAGE:0.7:12:1800 \ RRA:MAX:0.7:12:1800 \ RRA:MIN:0.7:12:1800 \ RRA:AVERAGE:0.7:60:2592 \ RRA:MAX:0.7:60:2592 \ RRA:MIN:0.7:60:2592 \ RRA:AVERAGE:0.7:240:2736 \ RRA:MAX:0.7:240:2736 \ RRA:MIN:0.7:240:2736 \ RRA:AVERAGE:0.7:1440:4800 \ RRA:MAX:0.7:1440:4800 \ RRA:MIN: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 } function activate_wifi() { $script_set_backup # ip route del default # ip route add default via 10.23.13.1 echo "Activated WiFi backup" } function activate_fso() { $script_set_main # ip route del default # ip route add default via 10.23.192.53 echo "Activated FSO primary link" } function rss_check_status() # $1 ... jmeno rusaderu (napr. crusader0) # $2 je sila signalu RSS { local name=$1 local rss=$2 if [ $rss -ge $rss_low_threshold ]; then echo "RSS($rss) >= low_threshold ($rss_low_threshold), erasing rss_low_count" rss_low_count="0" fi if [ $rss -le $rss_good_threshold ]; then echo "RSS($rss) <= good_threshold ($rss_good_threshold), erasing rss_good_count" rss_good_count="0" fi if [ "$rss_status" == "good" ] && [ $rss -lt $rss_low_threshold ]; then let rss_low_count+=1 echo "RSS($rss) < low_threshold ($rss_low_threshold), increasing rss_low_count to $rss_low_count" fi if [ "$rss_status" == "low" ] && [ $rss -gt $rss_good_threshold ]; then let rss_good_count+=1 echo "RSS($rss) > good_threshold ($rss_good_threshold), increasing rss_good_count to $rss_good_count" fi if [ "$rss_status" == "good" ] && [ $rss_low_count -ge $rss_low_counter_go_backup ]; then echo "FSO link goes down" rss_status="low" activate_wifi Log "Crusader $crusader_number: goes down, activating WiFi backup (RSS $rss)" fi if [ "$rss_status" == "low" ] && [ $rss_good_count -ge $rss_good_counter_go_main ]; then echo "FSO link goes up" rss_status="good" activate_fso Log "Crusader $crusader_number: goes up, activating FSO (RSS $rss)" fi } function load_config() { . ${config_file} rss_low_threshold=${RSS_LOW_THRESHOLD[$crusader_number]} rss_good_threshold=${RSS_GOOD_THRESHOLD[$crusader_number]} rss_low_counter_go_backup=${RSS_LOW_COUNTER_TO_GO_BACKUP[$crusader_number]} rss_good_counter_go_main=${RSS_GOOD_COUNTER_TO_GO_MAIN[$crusader_number]} device=${DEVICE[$crusader_number]} name=${NAME[$crusader_number]}${crusader_number} } print_config() { Log "Crusader $crusader_number" Log " RSS low threshold = $rss_low_threshold" Log " RSS good threshold = $rss_good_threshold" Log " RSS low counter go backup = $rss_low_counter_go_backup" Log " RSS good counter go main = $rss_good_counter_go_main" Log " Seriak: $device" } # Inicializace load_config print_config # otevri seriak jako filedescriptor exec 10<${device} read rest <&10 # synchronizacni cteni j=0 rv=2 while [ $rv -eq 2 ] # pokud vyjde 2, pak to neni cislo a test selhal do let j=$j+1 read -t 1 rss rest <&10 test $rss -ge 0 2>/dev/null # slouzi k otestovani, ze rss obsahuje numerickou hodnoru rv=$? done echo "Pocet pokusu: $j" Log " Sila signalu pri startu (RSS): $rss" if [ $rss -gt $rss_good_threshold ]; then Log " Preliminary setting to FSO" activate_fso rss_status="good" rss_status_last="good" else Log " Preliminary set to WiFi backup" activate_wifi rss_status="low" rss_status_last="low" fi # kolikrat byl signal nizsi nez rss_low_threshold opakovane v rade po sobe rss_low_counter=0 # kolikrat byl signal vyssi nez rss_good_threshold opakovane v rade po sobe rss_good_counter=0 start_time=`date +%s` interval=$(( $start_time / 5 * 5 + 5 )) # Hlavni smycka while [ true ] ; do old_device=${device} load_config if [ "$device" != "${old_device}" ]; then Log "Crusader $crusader_number: Zmena seriaku ${old_device} -> ${device}" # zavri seriak exec 10<&- # otevri novy seriak exec 10<${device} fi rrdfile=${name} if [ ! -f $rrdfile.rrd ] ; then create $rrdfile fi soucet_rss="0" rss_min="1000" # ma to jen tri cifry, tj. max 999 => 1000 je vic nez maximum rss_max="0" pocet="0" read rest <&10 # pouze synchronizace, holt o jeden radek prijdeme time_now=`date +%s` while [ $time_now -lt $interval ]; do # cekame na zacatek dalsiho intervalu time_now=`date +%s` read -t 1 rss rest <&10 # tady cteme z file descriptoru (seriak) # echo "rss: '$rss' and the rest of line: '$rest'" test $rss -ge 0 2>/dev/null # slouzi k otestovani, ze rss obsahuje numerickou hodnoru if [ $? -lt 2 ] # pokud vyjde 2, pak to neni cislo a test selhal then soucet_rss=$(( $soucet_rss + $rss )) pocet=$(( $pocet + 1 )) if [ $rss -lt $rss_min ]; then rss_min=$rss fi if [ $rss -gt $rss_max ]; then rss_max=$rss fi fi done if [ $pocet -gt 0 ] then prumer=`echo "${soucet_rss}/${pocet}" | bc -l` echo "prumer: $prumer min: $rss_min max: $rss_max" rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:$prumer:$rss_min:$rss_max prumer=`echo $prumer | cut -d '.' -f 1` rss_check_status ${name} $prumer else echo "NaN" rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:U:U:U rss_check_status ${name} 0 fi interval=$(( $interval + 5 )) done WebSVN - crusader - Blame - Rev 1 - /trunk/statistiky/opt/statistiky/archiv/collect_crusader.sh.20051127
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