[rrd-users] Re: RRDTOOL and MRTG - Data out of bounds problems

Luís Marta lmarta at fccn.pt
Tue Mar 26 16:16:19 MET 2002

I've been having more or less the same odd-spikes problem in RRD-TOOL. And i
can't figure out why, some graphics have spikes at one time, others at
another time, even when the data is read from the same router, with no
pattern whatsoever...
It's not a reload in the router, it's not the counter that went back to
zero, ...?
Anyone has ideas?


Luis Marta.

----- Original Message -----
From: "Jason Frisvold" <Jason.Frisvold at corp.ptd.net>
To: <rrd-users at list.ee.ethz.ch>
Sent: Tuesday, March 26, 2002 3:06 PM
Subject: [rrd-users] RRDTOOL and MRTG - Data out of bounds problems

> We monitor several thousand nodes.  I have it running on a single box,
> and it seems to keep up quite well.  I've run into a problem, however,
> and I can't seem to figure out what's happening...  Every once in a
> while (esp during a network outage) the graphs will spike to ridiculous
> levels.  While I'd love to have my OC-3 circuits be capable of handling
> 4+Gb of data, it just isn't possible.  I cannot figure out where these
> spikes are being sourced from and it's throwing the resolution of the
> graphs off, not to mention severely skewing the data...

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