[rrd-users] Re: Get counter errors at reload switch, change my graph scale.

[Diego Soares]

Alex,
I want use the same function used from mrtg: 
MaxBytes[xxxx]: 125000000
In the rrdcreate i put this:
DS:ds0:COUNTER:500:0:100000000

It is the same?

But my graphic has a wrap Counter, see this in anex
file. 

Thenk's to your aid.
Diego.


--- Alex van den Bogaerdt <alex at ergens.op.het.net>
escreveu:

> On Fri, Jan 27, 2006 at 09:17:27PM +0000, Diego
> Soares wrote:
> 
> > My switch is a FastEthernet switch, this invalid
> data
> > originated from manual reload or clear Counters.
> 
> Sure, a well known issue.  It has been discussed
> many times,
> this looks like a counterwrap to rrdtool. 
> Sufficiently low
> limits should make it less likely that you suffer
> from this.
> 
> > Where is "modify its upper limits"? In the
> rrdcreate
> > graph?
> 
> See manual page of rrdtool tune.
> 
> > I create my rrd file with this options:
> > DS:ds0:COUNTER:500:0:100000000 \
> > DS:ds1:COUNTER:500:0:100000000 \
> > 
> > To limit the maximum rate to 100mb. This is
> correct??
> 
> Well, 100 mega-somethings.  I don't know if you put
> bits,
> bytes, frames, nibbles, whatever into the database.
> 
> That should have worked, but clearly it didn't. 
> Either
> the value was modified, did not make it into the
> database,
> or perhaps you spotted a bug.
> 
> If you are sure that 100,000,000 upper limit is in
> place,
> then never mind about rrdtool tune.
> 
> 
> Alternatively you can modify COUNTER into DERIVE,
> and keep
> that lower limit of zero.  You will never detect
> counter
> wraps again, even real ones.
> 
> HTH
> Alex
> 
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