[rrd-users] Optimize RRD update

[Gwenael Lahay]

Hello,

To be more concrete, i use rrd files to store data extracted by the tool
Flowscan.
The tool calculates the bits/sec and packets/sec on a network.
I store this result in rrd files (the tool calculate the average for 1
minutes).

For the moment, i use this parameters :

step 60

DS:bytes:ABSOLUTE:300:0:U
DS:pkts:ABSOLUTE:300:0:U
DS:flows:ABSOLUTE:300:0:U

and

RRA:AVERAGE:0:1:4320
RRA:AVERAGE:0.8:5:2016
RRA:AVERAGE:0.94:15:2976

Flowscan tool returns only values different to zero.
If there is no data, it means that there is no flow on the network (zero
value).

do i use correct parameters ?


2008/2/4, Fabien Wernli <wernli at in2p3.fr>:
>
> On Sun, Feb 03, 2008 at 06:48:06PM +0100, Gwenael Lahay wrote:
> > I update my rrd file to put zero values because my rrd file stores 3
> > frequency of the same data.
>
> and only one of the 3 gets updated at any one time?
>
> > correctly the average value for 5 minutes and half and hour.
> > For example, i have the following value for a 5 minutes interval :
> > NaN 3 NaN NaN NaN NaN
> > The program store a NaN data for this 5 minutes interval.
>
> so what is Nan: the measure (rrdtool fetch output) or your calculation
> (rrdtool graph) or both?
> If you manually calculate the average between frequencies, you may wanna
> play with RPN IF expressions to check for nan values
>
> _______________________________________________
> rrd-users mailing list
> rrd-users at lists.oetiker.ch
> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.oetiker.ch/pipermail/rrd-users/attachments/20080204/3f2fb065/attachment-0001.html