[rrd-users] Re: Newbie: "step" confusion, blank plots

[uaca at alumni.uv.es]

Hello Mike

I'm a newbie too, I'will try to answer

On Thu, Oct 02, 2003 at 11:26:04AM -0700, Mike Hunter wrote:
> On Sep 25, "To rrd-users at list.ee.ethz.ch" wrote:
> 
[...]
> Can somebody show me how to make an rrdgraph out of the following
> datafile?
> 
> 2003-08-29.013001       10920070747     8291601450
> 2003-08-29.014501       9914236068      9615483756
> 2003-08-29.020001       8202305396      7795379166
> 2003-08-29.021501       7450926286      7995740622
> 2003-08-29.023001       7100548682      7943914961
> 2003-08-29.024501       7928561712      8222909469
> 2003-08-29.030001       5779334162      7954788420
> 2003-08-29.031501       5404870464      8294500672
> 2003-08-29.033001       4751317213      6861155522
> 2003-08-29.034501       5624335005      8089450973
> 2003-08-29.040001       2908052123      5655948510
> 2003-08-29.041501       5171003056      8099823516
> 2003-08-29.043001       4059829955      7416167984
> 2003-08-29.044501       4467995422      8396832232
> 2003-08-29.050001       3498427949      7258680374
> 2003-08-29.051501       4523794735      8226483341
> 2003-08-29.053001       3161418542      7720306661
> 2003-08-29.054501       3093824420      7140138469
> ...

the timestamp can be specified along with "rrdtool update"
the other two columns must be declared at database creation as two
DataSources (DS)

I suggest you to read, a reply to a previous question I made

http://www.ee.ethz.ch/~slist/rrd-users/msg07398.html

I hope this helps

	Ulisses
> 
> I hate morons who don't read the man page too, but I've tried and I can't
> figure this out :|
> 
> The code to convert the dates to epoch seconds is as follows:

Is this the problem?

debug it line by line :-)

	Ulisses

> 
> ...
>   my ($datemess, $in, $out) = split /\s+/, $_;
>   my ($year, $month, $day, $timemess) = split /[-.]/, $datemess;
>   my $hour = substr $timemess, 0, 2;
>   my $minute = substr $timemess, 2, 2;
>   my $second = substr $timemess, 4, 2;
>   $hour =~ s/^0*(.)/$1/;
>   $minute =~ s/^0*(.)/$1/;
>   $second =~ s/^0*(.)/$1/;
>   my $epoch_cmd = "date -j -v".$year."y -v".$month."m -v".$day."d -v".
>                   $hour."H -v".$minute."M -v".$second."S \"+%s\"";
>   $debug and print $epoch_cmd;
>   my $epoch = `$epoch_cmd`;
>
>
> ...
> 
> Thanks,
> 
> Mike
> 
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