[rrd-users] Re: Can't Parse DEF error on NT

[Warnes, Jason SktnHR]

I use to get the same thing on my NT/2000 versions of Perl scripts.  The
combination I found that works is this:
- Make sure that your output file (GIF/PNG) is formatted like this:
	c:\\inetpub\\graphs\\output.gif
- Make sure that your RRD definitions are like this:
	c\\:\\inetpub\\wwwroot\\mrtg\\rrdtool\\drmateo_e4.rrd:ds0:AVERAGE

The reasons for this are:
- Windows uses \ as directory layer separators, but Perl uses that as an
escape code for special characters, that is why when you want to send a \ to
the RRD Perl module you need to feed it a \\.  Otherwise Perl thinks it's an
escape character meant for the Perl interpreter.
- The \\ is required before the : of the "c\\:\\inet..." because RRDTool is
looking for : as a field separator, so you need to tell the RRD Perl module
to treat it like a special character.  So we need to feed it a \: but as
stated above when we need to feed the RRD Perl module a \ we need to send a
\\ to get past Perl thinking it's an escape character for it.
- We don't need a \\: in the output file definition because RRDTool isn't
using : as a field separator and will treat it literally.

I hope this helps, and doesn't just confuse the problem further.  :-)

Feel free to email me if you would like me to try and come up with a better
explanation.

Jason...



-----Original Message-----
From: Alvaro Cornejo [mailto:alvaro.cornejo at glenayre.com] 
Sent: Wednesday, August 13, 2003 9:40 AM
To: sh at abovenet.de
Cc: rrd-users at list.ee.ethz.ch
Subject: [rrd-users] Re: Can't Parse DEF error on NT


Hi

I've tried your suggestion C\\:\\... and some combinations of it but still
couldn't get it done. Either I get the same "can't parse DEF.." error or the
rrdtool said it can't find the specified file, dependig on the combination
of \\, \, //, etc I use.

Regards

Alvaro



-----Original Message-----
From: Stephan Harren [mailto:sh at abovenet.de]
Sent: Miércoles, 13 de Agosto de 2003 05:26
To: Alvaro Cornejo
Cc: rrd-users at list.ee.ethz.ch
Subject: Re: [rrd-users] Can't Parse DEF error on NT


> Error: RRDs::graph failed, can't parse DEF 
> 'in0=C:/inetpub/wwwroot/mrtg/rrdtool/drmateo_e4.rrd:ds0:AVERAGE' -2
>
> I've tried to define the path-to-rrd-file with "\\", "\", "/" and "//" 
> but I always get the same error.

Try this:

C\\:\\Inetpub\\wwwroot\\mrtg\\rrdtool\\.........

Best regards,

Stephan

-- 
Stephan Harren
Manager Site Operations
MFN-IS
-------------------------------
Phone +49 69 90554 153
Fax +49 69 90554 111
Cell +49 173 7011126

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi