For two days I have fought and fought to make MRTG produce graphs that make any kind of sense and I am now stuck. I have basically built a mock-up so as to remove any unknown aspect of fetching data from my server.
I started with a small script that emulates exactly the data I am getting. I am using bwm-ng on OpenBSD to give me rate values for the network interface that is in bytes/sec. I mocked a perl script up to produce that output for now: use strict; my $pad1 = 2905701 + int(rand(1000)); my $pad2 = 1126298 + int(rand(1000)); print $pad1."\n".$pad2."\n"; print "0\n"; print "0\n"; and the output looks like this: # perl /usr/local/wemade/get_fw_bw.pl 2906330 1127083 0 0 I added in the rand part so I could see some small fluctuation. But 2905701 in bytes/sec should be about (2905701 X 8) 23245608 bits/sec or about 23Mb/sec. I feed that in via my mrtg config: HtmlDir: /var/www/html/prodstats/firewall ImageDir: /var/www/html/prodstats/firewall LogDir: /var/lib/mrtg ThreshDir: /var/lib/mrtg Title[fw_total]: Firewall Total Bandwidth PageTop[fw_total]: <H1>Firewall Total Bandwidth</H1> Options[fw_total]: growright Target[fw_total]: `/usr/bin/perl /usr/local/wemade/get_fw_bw.pl` YLegend[fw_total]: Bandwidth MaxBytes[fw_total]: 32768000 and after now several iterations my chart says Max Average Current In 8.0 B/s (0.0%) 9.0 B/s (0.0%) 9.0 B/s (0.0%) Out 12.0 B/s (0.0%) 12.0 B/s (0.0%) 12.0 B/s (0.0%) and the logfile looks like this: # head /var/lib/mrtg/fw_total.log 1269113161 2906169 1126931 1269113161 5 5 5 5 1269113102 11 5 11 5 1269113100 8 12 158 105 1269112800 0 0 0 0 1269112500 0 0 0 0 1269112200 0 0 0 0 1269111900 0 0 0 0 1269111600 0 0 0 0 1269111300 0 0 0 0 I don't get it. Anyone have any ideas? -Geoff Sweet _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
