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[/] [trunk/] [statistiky/] [opt/] [statistiky/] [archiv/] [collect_crusader.sh.20051119] - Blame information for rev 3

 

Line No. Rev Author Line
11simandl#!/bin/bash3
2#
3#
4# 2005-11-02/Libor konfiguracni skripty na prehazovani primarni FSO <-> backup WiFi
5# logovani do /var/statistiky/crusader/crusader.log
6# bash3, nevim proc, ale na Marvinovi mi to s dvojkou nechodilo kvuliva
7# porovnavani desetinnych cisel pomoci if [ $neco -le $rss ]...
8# 2005-10-27/Libor pridano prehazovani na WiFi zalohu pri signalu < 300
9#
10#
11 
12stat_dir="/var/statistiky/crusader"
13logfile="$stat_dir/crusader.log"
14mkdir -p $stat_dir
15 
16config_file=/opt/statistiky/collect_crusader.conf
17script_set_main=/opt/statistiky/crusader_set_main.sh
18script_set_backup=/opt/statistiky/crusader_set_backup.sh
19 
20function Log()
21# $1 ... message
22{
23 timenow=`date +"%Y-%m-%d %T"`
24 echo "$timenow $1"
25 echo "$timenow $1" >>$logfile
26}
27 
28Log "Crusader start ====="
29Log "Using config file: $config_file"
30 
31if [ ! -f $config_file ]
32then
33 Log "Missing config file $config_file, exiting."
34 exit 1;
35fi
36 
37if [ ! -x $script_set_main ]; then
38 Log "Script set up main is not executable: $script_set_main"
39 exit 1;
40fi
41if [ ! -x $script_set_backup ]; then
42 Log "Script set up main is not executable: $script_set_backup"
43 exit 1;
44fi
45 
46cd $stat_dir
47 
48function create()
49# $1 ... netdevice
50{
51 local file=$1
52 Log "Creating RRD archive $file"
53 
54# step = 5s
55# za posledni 2,5 hodiny chceme vsechny PDP => 2,5 * 3600 / 5 = 1800 hodnot/radku
56# 20s ~ agregace ze ctyr hodnot (PDP)
57# za poslednich 10 hodin chceme 20s udaje => 10*3600/20 = 1800 generaci/radku
58# za poslednich 30 hodin chceme 60s udaje => 30*3600/60 = 1800 generaci/radku
59# 5 minut = 12 PDP za minutu * 5 minut = 60 PDP
60# za posledni tyden (9dni) chceme 5minutove udaje => 12*24*9 = 2592 radku (rows)
61# 20min ~ agregace z 240 PDP
62# za posledni mesic (38dni) chceme 20minutove useky => 3*24*38 = 2736 radku
63# dve hodiny ~ 1440 PDP
64# za posledni rok chceme dvouhodinove useky => 12*400 = 4800 radku
65 
66rrdtool create ${file}.rrd --step 5 --start `date +%s` \
67 DS:rss_avg:GAUGE:10:0:999 \
68 DS:rss_min:GAUGE:10:0:999 \
69 DS:rss_max:GAUGE:10:0:999 \
70 RRA:AVERAGE:0.7:1:1800 \
71 RRA:MAX:0.7:1:1800 \
72 RRA:MIN:0.7:1:1800 \
73 RRA:AVERAGE:0.7:4:2880 \
74 RRA:MAX:0.7:4:2880 \
75 RRA:MIN:0.7:4:2880 \
76 RRA:AVERAGE:0.7:12:1800 \
77 RRA:MAX:0.7:12:1800 \
78 RRA:MIN:0.7:12:1800 \
79 RRA:AVERAGE:0.7:60:2592 \
80 RRA:MAX:0.7:60:2592 \
81 RRA:MIN:0.7:60:2592 \
82 RRA:AVERAGE:0.7:240:2736 \
83 RRA:MAX:0.7:240:2736 \
84 RRA:MIN:0.7:240:2736 \
85 RRA:AVERAGE:0.7:1440:4800 \
86 RRA:MAX:0.7:1440:4800 \
87 RRA:MIN:0.7:1440:4800
88 
89}
90 
91function wait_to()
92# $1 date for waiting to
93{
94 local time_now=`date +%s`;
95 while [ $time_now -lt $1 ]
96 do
97 time_now=`date +%s`
98 sleep 1;
99 done
100}
101 
102 
103function activate_wifi()
104{
105 $script_set_backup
106# ip route del default
107# ip route add default via 10.23.13.1
108 echo "Activated WiFi backup"
109}
110function activate_fso()
111{
112 $script_set_main
113# ip route del default
114# ip route add default via 10.23.192.53
115 echo "Activated FSO primary link"
116}
117 
118rss_offset=100
119# kolikrat byl signal nizsi nez rss_low_threshold opakovane v rade po sobe
120rss_low_count=0
121# pocet detekovanych slabych signalu v rade, kdy se prepoji inet na zalohu
122rss_low_count_down=3
123# pokud sila signalu klesne pod threshold je indikovana jako slaby signal
124let rss_low_threshold=300+$rss_offset
125# kolikrat byl signal vyssi nez rss_good_threshold opakovane v rade po sobe
126rss_good_count=0
127# pocet detekovanych dobrych signalu v rade, kdy se prepoji inet zpet na Crusader
128rss_good_count_up=12
129# pokud sila signalu stoupne nad threshold je indikovana jako dobry signal
130let rss_good_threshold=350+$rss_offset
131# stav sily signalu, muze byt 'low' nebo 'good'
132# zaciname s 'good' protoze prepnuti good->low je rychlejsi a taky startup skripty
133# pocitaji s optickou linkou, WiFi je zaloha
134rss_status="good"
135rss_status_last="good"
136 
137Log "RSS offset = $rss_offset"
138Log "RSS low threshold = $rss_low_threshold"
139Log "RSS good threshold = $rss_good_threshold"
140 
141function rss_check_status()
142# $1 ... jmeno rusaderu (napr. crusader0)
143# $2 je sila signalu RSS
144{
145 local name=$1
146 local rss=$2
147 if [ $rss -ge $rss_low_threshold ]; then
148 echo "RSS($rss) >= low_threshold ($rss_low_threshold), erasing rss_low_count"
149 rss_low_count="0"
150 fi
151 if [ $rss -le $rss_good_threshold ]; then
152 echo "RSS($rss) <= good_threshold ($rss_good_threshold), erasing rss_good_count"
153 rss_good_count="0"
154 fi
155 if [ "$rss_status" == "good" ] && [ $rss -lt $rss_low_threshold ]; then
156 let rss_low_count+=1
157 echo "RSS($rss) < low_threshold ($rss_low_threshold), increasing rss_low_count to $rss_low_count"
158 fi
159 if [ "$rss_status" == "low" ] && [ $rss -gt $rss_good_threshold ]; then
160 let rss_good_count+=1
161 echo "RSS($rss) > good_threshold ($rss_good_threshold), increasing rss_good_count to $rss_good_count"
162 fi
163 if [ "$rss_status" == "good" ] && [ $rss_low_count -ge $rss_low_count_down ]; then
164 echo "FSO link goes down"
165 rss_status="low"
166 activate_wifi
167 Log "$name goes down, activating WiFi backup (RSS $rss)"
168 fi
169 if [ "$rss_status" == "low" ] && [ $rss_good_count -ge $rss_good_count_up ]; then
170 echo "FSO link goes up"
171 rss_status="good"
172 activate_fso
173 Log "$name goes up (RSS $rss)"
174 fi
175}
176 
177start_time=`date +%s`
178interval=$(( $start_time / 5 * 5 + 5 ))
179 
180while [ true ] ; do
181 
182 . ${config_file}
183 
184 device=${DEVICE[0]}
185 name=${NAME[0]}0
186 rrdfile=$name
187 
188 if [ ! -f $rrdfile.rrd ] ; then
189 create $rrdfile
190 fi
191 
192 soucet_rss="0"
193 rss_min="1000" # ma to jen tri cifry, tj. max 999 => 1000 je vic nez maximum
194 rss_max="0"
195 pocet="0"
196 read rss <${device} # pouze synchronizace, holt o jeden radek prijdeme
197 time_now=`date +%s`
198 while [ $time_now -lt $interval ]; do # cekame na zacatek dalsiho intervalu
199 time_now=`date +%s`
200 
201 read -t 1 rss rest <${device} # tady cteme
202# echo "rss: '$rss' and the rest of line: '$rest'"
203 test $rss -ge 0 2>/dev/null # slouzi k otestovani, ze rss obsahuje numerickou hodnoru
204 if [ $? -lt 2 ] # pokud vyjde 2, pak to neni cislo a test selhal
205 then
206 soucet_rss=$(( $soucet_rss + $rss ))
207 pocet=$(( $pocet + 1 ))
208 if [ $rss -lt $rss_min ]; then
209 rss_min=$rss
210 fi
211 if [ $rss -gt $rss_max ]; then
212 rss_max=$rss
213 fi
214 fi
215 done
216 
217 if [ $pocet -gt 0 ]
218 then
219 prumer=`echo "${soucet_rss}/${pocet}" | bc -l`
220 echo "prumer: $prumer min: $rss_min max: $rss_max"
221 rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:$prumer:$rss_min:$rss_max
222 prumer=`echo $prumer | cut -d '.' -f 1`
223 rss_check_status $name $prumer
224 else
225 echo "NaN"
226 rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:U:U:U
227 rss_check_status $name 0
228 fi
229 
230 interval=$(( $interval + 5 ))
231 
232done

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