[rrd-users] No data man

[NAIL, THOMAS (SBIS)]

Tobi, et al.
thanks for designing this wonderful tool...but (you knew it was coming,
right?) I'm having some problems. I'm trying to graph some data and it isn't
showing up. Admittedly, Im a newbie and am probably missing something
simple, so I'll try to include as much information as I can. Sorry if it's a
long post.

I'm using a simple perl script to get values from a current logfile and
update an rrd with the specific data. The script runs fine and I encounter
no errors at that end, but the data doesn't appear in the rrd. I just keep
getting "NaN". The script updates only once a day (thus the large values for
the --step and heartbeat variables) and a "truss -fa" of the script shows
that it is indeed passing the correct variables from the parsing it has
done. I'm totally at a loss.

Here is the script:
Running on Solaris 2.6 x86 using Perl 5.005_03/RRDTool 1.0.17
_____________________________________
#!/usr/local/bin/perl -w
#perlscript for parsing files for PRIs

while (<>) {
if (/switched/) {
    chomp($_);
    @pris = split(/:/,$_);
        #print "$pris[0].rrd $pris[2]\n"
        if ( -e "/scripts/rrdt/data/PRIs/$pris[0].pri.rrd" ) {
                system("/opt/bin/rrdtool update
/scripts/rrdt/data/PRIs/$pris[0].pri.rrd N:$pris[2]");
        }
        else {
                system("/opt/bin/rrdtool create
/scripts/rrdt/data/PRIs/$pris[0].pri.rrd  --step 86400
DS:pris:GAUGE:100000:0:U RRA:MAX:0.5:1:750");
                system("/opt/bin/rrdtool update
/scripts/rrdt/data/PRIs/$pris[0].pri.rrd N:$pris[2]");
        }
}
}
______________________________________

...and the output from a "fetch" command:

$-->rrdtool fetch PRIs/bobstx.pri.rrd MAX
                    pris

 966384000: -NaN
 966470400: -NaN
 966556800: -NaN

Any help would be appreciated.

Thanks,

Tom Nail

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