[rrd-users] Re: Graphing to STDOUT

Thies Lehmann Thies.Lehmann at vectoris.ch
Thu Aug 14 16:00:35 MEST 2003

>  Having a few problems with RRDs::graph under win2k.
>  I am able to create graphs OK if I create a file, but I have 
> a need to send them to STDOUT instaed. According to the 
> RRDTool docs, using '-' as the filename will send the output 
> to STDOUT. However, doing this in my perl script simply 
> crashes Perl. (Illegal operation and Windows terminates trhe 
> Perl ineterpreter.)

It should work with perl scripts, it seems there are problems
with asp/perlscript.

Did you set perl to unbuffered output and provide the proper mime-type?

e.g. somewhere at the beginning:

$| = 1; print "Content-type:image/png\n\n";


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