[rrd-users] Re: Wrapping not working correctly

[Lordy]

Hi Trey,

here is what I did on my RRD file:

rrdtool tune eth0.rrd -i input:0
rrdtool tune eth0.rrd -a output:0
rrdtool tune eth0.rrd -a input:4294967295
rrdtool tune eth0.rrd -a output:4294967295

Since I did that the counter has wrapped multiple times and there are no peaks
in my RRD or graphs any more :-)

Best regards,
Lordy

At 10:59 15.05.2003 -0400, Webb, Trey wrote:

>All,
>
>I have been having this same problem see my earlier post:
>
><http://www.ee.ethz.ch/~slist/rrd-users/msg06675.html>http://www.ee.ethz.ch/~slist/rrd-users/msg06675.html 
>
>
>I followed the suggestion of setting a minimum and maximum, with no luck. 
>The counters are wrapping at 32-bit boundaries and when that happens it 
>seems to be adding the wrap amount to the average, thus creating a spike. 
>Any help would be greatly appreciated.
>
>--trey
>
>-----Original Message-----
>From: Tobias Oetiker [<mailto:oetiker at ee.ethz.ch>mailto:oetiker at ee.ethz.ch]
>Sent: Thursday, May 15, 2003 1:33 AM
>To: Lordy
>Cc: rrd-users at list.ee.ethz.ch
>Subject: [rrd-users] Re: Wrapping not working correctly
>
>Today Lordy wrote:
> > This is a log of the counter wrap and the according values from the 
> rrdfile:
> >
> > TIMESTAMP : INPUT : OUTPUT (log)
> > 1052944620 : 26649774336 : 34299525336
> > 1052944680 : 26653861104 : 83380896
> > 1052944740 : 26657344136 : 214937496
> > [...]
> > 1052931120 : 25223793736 : 34297051328
> > 1052931181 : 25229329384 : 150880920
> > 1052931240 : 25234327032 : 343693456
> >
> > TIMESTAMP : INPUT(AVERAGE) : OUTPUT(AVERAGE) (rrd)
> > 1052944500: 3.5023817268e+04 1.1066858514e+06
> > 1052944800: 6.5019546667e+04 6.1489146800e+16
> > 1052945100: 9.9007487213e+04 3.0024917578e+06
> > [...]
> > 1052931000: 9.3047440000e+04 3.2095458133e+06
> > 1052931300: 8.1707626667e+04 6.1489146801e+16
> > 1052931600: 7.2381360000e+04 2.9875407733e+06
> >
> > Is this a problem with /proc/net/dev, rrdtool or just sh!t in -> sh!t 
> out ?
> >
> > I'm really curious to hear any comments on this as rrdtool is supposed to
> > "handle wraps
> > gracefully" according to Tobi's earlier postings on this list.
>
>Lordy,
>
>for wrap detection to work, a min and max must be set, and the
>wrpas must happen at 32bit and 64bit bounderies, otherwhise it is
>sensible to just use DERIVE datasources with min set to 0
>
>tobi
> >
> > Best regards,
> > Lordy
> >
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