[rrd-users] Incorrect Values in graphs

[Pataud Frederic]

Hi,

I'm using rrdtool 1.0.33 for graphing netscape proxy logs, sometimes I got "wrong" values in my graphs.
I did a logfile in my scripts (see below) and when I read the values in this log I can't understand where
rrd can find this "wrong" data. Could anyone explain me ?

For example I get value "1101274" for the "cpt6" average item but in the update string this element is less than 250 !!
This "bad" values appears only with cpt[0-c] ...not with act[0-6]...

The logfile (update string):

 1027342588:64:29:35:21:1:0:7:222318172:207624:95:26415:22853:158151:110:0:26405:1119:21718:0:10009
 1027342618:64:32:32:29:0:0:3:224414521:209498:95:26616:23066:159611:110:0:26606:1131:21919:0:10138
 1027342804:64:31:33:23:1:0:7:237894939:220163:100:27990:24333:167629:111:0:27979:1191:23126:0:10876
 1027343103:64:22:42:20:0:0:2:259929652:238232:106:29972:26218:181825:111:0:29960:1273:24928:0:12091
 1027343406:64:43:21:36:0:0:7:275197772:258059:111:31794:27980:198060:114:0:31782:1366:26597:0:13013
 1027343705:64:38:26:34:0:0:4:292915761:277203:117:33773:29757:213441:115:0:33760:1434:28305:0:13807
 1027344003:64:31:33:21:1:0:9:312588761:295402:126:36045:31823:227286:122:0:36027:1497:30305:0:14553
 1027344303:61:40:21:35:0:0:5:316720064:299230:128:36839:32318:229827:118:0:36822:1524:30772:0:14662
 1027344604:64:64:0:55:0:0:9:360913586:331742:146:41242:35995:254228:131:0:41224:1697:34276:0:16365
 1027344906:62:36:26:28:0:0:8:366510072:338675:148:42197:36526:259668:136:0:42179:1694:34810:0:17054
 1027345203:64:42:22:37:0:0:5:395191551:367694:161:45598:39313:282477:145:0:45574:1841:37448:0:18421
 1027345504:64:26:38:23:0:0:3:413809785:385541:165:48048:41027:296150:151:0:48024:1909:39094:0:19221
 1027345804:64:52:12:42:0:0:10:429436825:403976:172:50013:42948:310680:163:0:49989:1974:40950:0:19891
 1027346102:64:64:0:53:0:0:11:448909528:421310:183:52135:45092:323733:167:0:52108:2054:43014:0:20588
 1027346473:64:32:32:28:0:0:4:478586371:442786:219:55333:48048:339011:175:0:55297:2158:45866:0:22071
 1027346703:64:22:42:18:0:0:4:494531397:455929:222:57395:49513:348620:179:0:57358:2219:47270:0:22878
 1027347006:64:64:0:58:0:0:6:514461269:473728:227:59792:51752:361776:181:0:59755:2315:49408:0:24030
 1027347304:64:64:0:42:0:0:22:539302278:491435:242:62064:53580:375366:183:0:62020:2417:51133:0:25116
 1027347605:61:54:7:45:0:0:9:532460686:484930:236:61484:52819:370211:180:0:61442:2423:50366:0:24711
 1027347904:64:45:19:37:0:0:8:576103132:527401:259:66699:57612:402615:216:0:66655:2584:54997:0:27096

the rrd structure :
 
  my $interval = 5;
  my $minhb = 600;
  my @args = ($rrdfile, '-b', $time-10, '-s', int($interval * 60),
                         "DS:act0:GAUGE:$minhb:0:1000",
                         "DS:act1:GAUGE:$minhb:0:1000",
                         "DS:act2:GAUGE:$minhb:0:1000",
                         "DS:act3:GAUGE:$minhb:0:1000",
                         "DS:act4:GAUGE:$minhb:0:1000",
                         "DS:act5:GAUGE:$minhb:0:1000",
                         "DS:act6:GAUGE:$minhb:0:1000",
                         "DS:cpt0:COUNTER:$minhb:0:4294967296",
                         "DS:cpt1:COUNTER:$minhb:0:4294967296",
                         "DS:cpt2:COUNTER:$minhb:0:4294967296",
                         "DS:cpt3:COUNTER:$minhb:0:4294967296",
                         "DS:cpt4:COUNTER:$minhb:0:4294967296",
                         "DS:cpt5:COUNTER:$minhb:0:4294967296",
                         "DS:cpt6:COUNTER:$minhb:0:4294967296",
                         "DS:cpt7:COUNTER:$minhb:0:4294967296",
                         "DS:cpt8:COUNTER:$minhb:0:4294967296",
                         "DS:cpt9:COUNTER:$minhb:0:4294967296",
                         "DS:cpta:COUNTER:$minhb:0:4294967296",
                         "DS:cptb:COUNTER:$minhb:0:4294967296",
                         "DS:cptc:COUNTER:$minhb:0:4294967296",
                         "RRA:AVERAGE:0.5:1:600",
                         "RRA:AVERAGE:0.5:6:700",
                         "RRA:AVERAGE:0.5:24:775",
                         "RRA:AVERAGE:0.5:288:797",
                         "RRA:MAX:0.5:1:600",
                         "RRA:MAX:0.5:6:700",
                         "RRA:MAX:0.5:24:775",
                         "RRA:MAX:0.5:288:797",
                         "RRA:MIN:0.5:1:600",
                         "RRA:MIN:0.5:6:700",
                         "RRA:MIN:0.5:24:775",
                         "RRA:MIN:0.5:288:797");




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