[rrd-users] Huge values

Andrikopoulos Dimitrios dandrikop at cosmote.gr
Wed Jun 20 16:18:12 CEST 2007

No, there is no counter wrap. I used the "snmpwalk" to poll manually the
SNMP counter in question
and it found no wrap.


-----Original Message-----
From: Andreas Maus [mailto:a.maus at science-computing.de] 
Sent: Wednesday, June 20, 2007 5:00 PM
To: Andrikopoulos Dimitrios
Cc: rrd-users at lists.oetiker.ch
Subject: Re: [rrd-users] Huge values

On Wed, Jun 20, 2007 at 04:38:23PM +0300, Andrikopoulos Dimitrios wrote:
> Hello,
>   I use some PERL script to poll SNMP counters and store their values 
> to RRDTool files. Although I didn't take any logging about what values

> my script actually stored in those
> RRD files, some times I noticed unexpectedly huge values which ruined
> the graphs. Of
> course, I solved this problem by putting maximum values when created
> RRD databa-
> ses.
>   Has anyone noticed similar problem?
Hi Dimitris.

Sure. It is called a counter wrap ;)

The rrdtutorial - http://oss.oetiker.ch/rrdtool/tut/rrdtutorial.en.html
- or man rrdtutorial will explain the details.



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 671             www.science-computing.de

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