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[/] [trunk/] [statistiky/] [opt/] [statistiky/] [archiv/] [collect_crusader.sh.20051102] - Blame information for rev 1

 

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

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