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crusader

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[/] [trunk/] [statistiky/] [opt/] [statistiky/] [collect_crusader.sh.20070127] - Blame information for rev 1

 

Line No. Rev Author Line
11simandl#!/bin/bash3
2#
3#
4# 2005-11-27/Libor Predelano cteni seriaku. Ted si ho otevre jako filedescriptor
5# a cte z nej jako ze souboru. Na Marvinovi se tim (snad) uplne
6# odstranily chly do nuly, ktere byly nejspis zpusobeny
7# rychlosti (pomalosti) Marvina. (800MHz VIA C3)
8# 2005-11-02/Libor konfiguracni skripty na prehazovani primarni FSO <-> backup WiFi
9# logovani do /var/statistiky/crusader/crusader.log
10# bash3, nevim proc, ale na Marvinovi mi to s dvojkou nechodilo kvuliva
11# porovnavani desetinnych cisel pomoci if [ $neco -le $rss ]...
12# 2005-10-27/Libor pridano prehazovani na WiFi zalohu pri signalu < 300
13#
14#
15 
16if [ $# -eq 1 ]; then
17 crusader_number=$1
18fi
19if [ $# -gt 1 ]; then
20 echo "ERROR: more than 1 option" >&2
21fi
22if [ $# -lt 1 ]; then
23 crusader_number=0
24fi
25 
26stat_dir="/var/statistiky/crusader"
27logfile="$stat_dir/crusader.log"
28mkdir -p $stat_dir
29 
30config_file=/opt/statistiky/collect_crusader.conf
31script_set_main=/opt/statistiky/crusader_set_main.sh
32script_set_backup=/opt/statistiky/crusader_set_backup.sh
33 
34function Log()
35# $1 ... message
36{
37 timenow=`date +"%Y-%m-%d %T"`
38 echo "$timenow $1"
39 echo "$timenow $1" >>$logfile
40}
41 
42Log "Crusader start ====="
43Log "Using config file: $config_file"
44 
45if [ ! -f $config_file ]
46then
47 Log "Missing config file $config_file, exiting."
48 exit 1;
49fi
50 
51if [ ! -x $script_set_main ]; then
52 Log "Script set up main is not executable: $script_set_main"
53 exit 1;
54fi
55if [ ! -x $script_set_backup ]; then
56 Log "Script set up main is not executable: $script_set_backup"
57 exit 1;
58fi
59 
60cd $stat_dir
61 
62function create()
63# $1 ... netdevice
64{
65 local file=$1
66 Log "Creating RRD archive $file"
67 
68# step = 5s
69# za posledni 2,5 hodiny chceme vsechny PDP => 2,5 * 3600 / 5 = 1800 hodnot/radku
70# 20s ~ agregace ze ctyr hodnot (PDP)
71# za poslednich 10 hodin chceme 20s udaje => 10*3600/20 = 1800 generaci/radku
72# za poslednich 30 hodin chceme 60s udaje => 30*3600/60 = 1800 generaci/radku
73# 5 minut = 12 PDP za minutu * 5 minut = 60 PDP
74# za posledni tyden (9dni) chceme 5minutove udaje => 12*24*9 = 2592 radku (rows)
75# 20min ~ agregace z 240 PDP
76# za posledni mesic (38dni) chceme 20minutove useky => 3*24*38 = 2736 radku
77# dve hodiny ~ 1440 PDP
78# za posledni rok chceme dvouhodinove useky => 12*400 = 4800 radku
79 
80rrdtool create ${file}.rrd --step 5 --start `date +%s` \
81 DS:rss_avg:GAUGE:10:0:999 \
82 DS:rss_min:GAUGE:10:0:999 \
83 DS:rss_max:GAUGE:10:0:999 \
84 RRA:AVERAGE:0.7:1:1800 \
85 RRA:MAX:0.7:1:1800 \
86 RRA:MIN:0.7:1:1800 \
87 RRA:AVERAGE:0.7:4:2880 \
88 RRA:MAX:0.7:4:2880 \
89 RRA:MIN:0.7:4:2880 \
90 RRA:AVERAGE:0.7:12:1800 \
91 RRA:MAX:0.7:12:1800 \
92 RRA:MIN:0.7:12:1800 \
93 RRA:AVERAGE:0.7:60:2592 \
94 RRA:MAX:0.7:60:2592 \
95 RRA:MIN:0.7:60:2592 \
96 RRA:AVERAGE:0.7:240:2736 \
97 RRA:MAX:0.7:240:2736 \
98 RRA:MIN:0.7:240:2736 \
99 RRA:AVERAGE:0.7:1440:4800 \
100 RRA:MAX:0.7:1440:4800 \
101 RRA:MIN:0.7:1440:4800
102 
103}
104 
105function wait_to()
106# $1 date for waiting to
107{
108 local time_now=`date +%s`;
109 while [ $time_now -lt $1 ]
110 do
111 time_now=`date +%s`
112 sleep 1;
113 done
114}
115 
116 
117function activate_wifi()
118{
119 $script_set_backup
120# ip route del default
121# ip route add default via 10.23.13.1
122 echo "Activated WiFi backup"
123}
124function activate_fso()
125{
126 $script_set_main
127# ip route del default
128# ip route add default via 10.23.192.53
129 echo "Activated FSO primary link"
130}
131 
132function rss_check_status()
133# $1 ... jmeno rusaderu (napr. crusader0)
134# $2 je sila signalu RSS
135{
136 local name=$1
137 local rss=$2
138 if [ $rss -ge $rss_low_threshold ]; then
139 echo "RSS($rss) >= low_threshold ($rss_low_threshold), erasing rss_low_count"
140 rss_low_count="0"
141 fi
142 if [ $rss -le $rss_good_threshold ]; then
143 echo "RSS($rss) <= good_threshold ($rss_good_threshold), erasing rss_good_count"
144 rss_good_count="0"
145 fi
146 if [ "$rss_status" == "good" ] && [ $rss -lt $rss_low_threshold ]; then
147 let rss_low_count+=1
148 echo "RSS($rss) < low_threshold ($rss_low_threshold), increasing rss_low_count to $rss_low_count"
149 fi
150 if [ "$rss_status" == "low" ] && [ $rss -gt $rss_good_threshold ]; then
151 let rss_good_count+=1
152 echo "RSS($rss) > good_threshold ($rss_good_threshold), increasing rss_good_count to $rss_good_count"
153 fi
154 if [ "$rss_status" == "good" ] && [ $rss_low_count -ge $rss_low_counter_go_backup ]; then
155 echo "FSO link goes down"
156 rss_status="low"
157 activate_wifi
158 Log "Crusader $crusader_number: goes down, activating WiFi backup (RSS $rss)"
159 fi
160 if [ "$rss_status" == "low" ] && [ $rss_good_count -ge $rss_good_counter_go_main ]; then
161 echo "FSO link goes up"
162 rss_status="good"
163 activate_fso
164 Log "Crusader $crusader_number: goes up, activating FSO (RSS $rss)"
165 fi
166}
167 
168function load_config()
169{
170 . ${config_file}
171 rss_low_threshold=${RSS_LOW_THRESHOLD[$crusader_number]}
172 rss_good_threshold=${RSS_GOOD_THRESHOLD[$crusader_number]}
173 rss_low_counter_go_backup=${RSS_LOW_COUNTER_TO_GO_BACKUP[$crusader_number]}
174 rss_good_counter_go_main=${RSS_GOOD_COUNTER_TO_GO_MAIN[$crusader_number]}
175 device=${DEVICE[$crusader_number]}
176 name=${NAME[$crusader_number]}${crusader_number}
177}
178 
179print_config()
180{
181 Log "Crusader $crusader_number"
182 Log " RSS low threshold = $rss_low_threshold"
183 Log " RSS good threshold = $rss_good_threshold"
184 Log " RSS low counter go backup = $rss_low_counter_go_backup"
185 Log " RSS good counter go main = $rss_good_counter_go_main"
186 Log " Seriak: $device"
187}
188 
189# Inicializace
190load_config
191print_config
192# otevri seriak jako filedescriptor
193exec 10<${device}
194read rest <&10 # synchronizacni cteni
195j=0
196rv=2
197while [ $rv -eq 2 ] # pokud vyjde 2, pak to neni cislo a test selhal
198do
199 let j=$j+1
200 read -t 1 rss rest <&10
201 test $rss -ge 0 2>/dev/null # slouzi k otestovani, ze rss obsahuje numerickou hodnoru
202 rv=$?
203done
204echo "Pocet pokusu: $j"
205Log " Sila signalu pri startu (RSS): $rss"
206 
207if [ $rss -gt $rss_good_threshold ]; then
208 Log " Preliminary setting to FSO"
209 activate_fso
210 rss_status="good"
211 rss_status_last="good"
212else
213 Log " Preliminary set to WiFi backup"
214 activate_wifi
215 rss_status="low"
216 rss_status_last="low"
217fi
218 
219# kolikrat byl signal nizsi nez rss_low_threshold opakovane v rade po sobe
220rss_low_counter=0
221# kolikrat byl signal vyssi nez rss_good_threshold opakovane v rade po sobe
222rss_good_counter=0
223 
224start_time=`date +%s`
225interval=$(( $start_time / 5 * 5 + 5 ))
226 
227# Hlavni smycka
228while [ true ] ; do
229 
230 old_device=${device}
231 load_config
232 
233 if [ "$device" != "${old_device}" ]; then
234 Log "Crusader $crusader_number: Zmena seriaku ${old_device} -> ${device}"
235 # zavri seriak
236 exec 10<&-
237 # otevri novy seriak
238 exec 10<${device}
239 fi
240 
241 rrdfile=${name}
242 if [ ! -f $rrdfile.rrd ] ; then
243 create $rrdfile
244 fi
245 
246 soucet_rss="0"
247 rss_min="1000" # ma to jen tri cifry, tj. max 999 => 1000 je vic nez maximum
248 rss_max="0"
249 pocet="0"
250 read rest <&10 # pouze synchronizace, holt o jeden radek prijdeme
251 time_now=`date +%s`
252 while [ $time_now -lt $interval ]; do # cekame na zacatek dalsiho intervalu
253 time_now=`date +%s`
254 
255 read -t 1 rss rest <&10 # tady cteme z file descriptoru (seriak)
256# echo "rss: '$rss' and the rest of line: '$rest'"
257 test $rss -ge 0 2>/dev/null # slouzi k otestovani, ze rss obsahuje numerickou hodnoru
258 if [ $? -lt 2 ] # pokud vyjde 2, pak to neni cislo a test selhal
259 then
260 soucet_rss=$(( $soucet_rss + $rss ))
261 pocet=$(( $pocet + 1 ))
262 if [ $rss -lt $rss_min ]; then
263 rss_min=$rss
264 fi
265 if [ $rss -gt $rss_max ]; then
266 rss_max=$rss
267 fi
268 fi
269 done
270 
271 if [ $pocet -gt 0 ]
272 then
273 prumer=`echo "${soucet_rss}/${pocet}" | bc -l`
274 echo "prumer: $prumer min: $rss_min max: $rss_max"
275 rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:$prumer:$rss_min:$rss_max
276 prumer=`echo $prumer | cut -d '.' -f 1`
277 rss_check_status ${name} $prumer
278 else
279 echo "NaN"
280 rrdtool update $rrdfile.rrd -t rss_avg:rss_min:rss_max $interval:U:U:U
281 rss_check_status ${name} 0
282 fi
283 
284 interval=$(( $interval + 5 ))
285 
286done

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