[rrd-users] Re: Printing a text report instead of a graph

Ruttenberg, Tanya Tanya.Ruttenberg at ssa.gov
Tue Oct 24 17:37:15 MEST 2006

I *do* think it seems more like a buffering issue than an xport issue as
I said.

I think I must have first tried RRDs::xport first. I wonder why I didn't
use it?  

I still think xport seems kind of messy--you have to wade through all
that XML to get your data.  But if noone has a different suggestion I
will go back to trying RRDs::xport.


-----Original Message-----
From: Andreas Maus [mailto:a.maus at science-computing.de] 
Sent: Tuesday, October 24, 2006 11:34 AM
To: Ruttenberg, Tanya
Cc: rrd-users at list.ee.ethz.ch
Subject: Re: [rrd-users] Re: Printing a text report instead of a graph

On Tue, Oct 24, 2006 at 11:08:30AM -0400, Ruttenberg, Tanya wrote:
Hi Tanya.

> I have a perl script that generates a list of around 300 rrd files and

> cranks through each one, producing an xport for each one.  I use 
> RRDp::cmd with xport.
> The main issue we've seen I posted about previously to this list in a 
> post called "Rrdxport issues".
Ah, yes. Found that post.

Hmmm ... After a very fast look at RRDp.pm it seems that it will call
rrdtool directly und uses its output.
Usually stdout/stdin are buffered and maybe the buffering produces this
mess. (Just a wild guess ;)

I used RRDs::xport inside a perl-Script for about 200 Hosts (two RRD
files per host) without any problems.

> It seems like it might be an output buffering issue rather than an 
> rrdxport issue, but I haven't been able to fix it in any case.
Could you try RRDs::xport instead? It is directly linked against librrd
(at least it doesn't call rrdtool directly).



P.S.: _If_ RRDs::xport work I guess you should report this bug with

Dipl.-Ing. Andreas Maus             science+computing ag
System Administration               Hagellocher Weg 73
mail: a.maus at science-computing.de   72070 Tuebingen, Germany
tel.: +49 7071 9457 456             www.science-computing.de

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