[rrd-developers] Re: Spikes in RRD after a dead zone

[mboldi at shore.net]

I almost forgot.  xff is set to 0.5
Here is my create  $speed is set to the port speed times 8.

rrdtool create $dbpath/$dbfile --step 300 \
        DS:ifInOctets:COUNTER:600:0:$speed \
        DS:ifOutOctets:COUNTER:600:0:$speed \
        RRA:AVERAGE:0.5:1:17568 \
        RRA:AVERAGE:0.5:6:2976 \
        RRA:AVERAGE:0.5:24:2232 \
        RRA:AVERAGE:0.5:288:368 \
        RRA:MAX:0.5:1:17568 \
        RRA:MAX:0.5:6:2976 \
        RRA:MAX:0.5:12:2232 \
        RRA:MAX:0.5:288:368


On Fri, 25 Feb 2000 mboldi at shore.net wrote:

> Hi Tobias,
> I am noting some spikes that shouldn't be.  I am collecting in & out octets
> on many network devices, and occasionally my polling routine cannot
> hit a device.  When the connection is resestablished, I get spikes that
> are just under the max I set for the RRD database.  However, seems
> to me that RRD should recognize this 1st observation (after the the
> series of Unknown reading) as a special case and not record these spikes.
> Seems that RRD is reporting in the one interval, all traffic that was
> incurred over the entire "Unknown" interval.
> 
> Is there a setting I have missed ?
> 
> 
> example
> 
> 
> <!-- Round Robin Database Dump -->
> <rrd>
>         <version> 0001 </version>
>         <step> 300 </step> <!-- Seconds -->
>         <lastupdate> 951493928 </lastupdate> <!-- 2000-02-25 10:52:08 EST -->
> 
>         <ds>
>                 <name> ifInOctets </name>
>                 <type> COUNTER </type>
>                 <minimal_heartbeat> 600 </minimal_heartbeat>
>                 <min> 0.0000000000e+00 </min>
>                 <max> 4.0540500000e+08 </max>
> 
> 
> <!-- 2000-02-24 16:10:00 EST --> <row><v> 1.7180658534e+05 </v><v> 3.3976507158e+04 </v></row>
> <!-- 2000-02-24 16:15:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:20:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:25:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:30:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:35:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:40:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:45:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:50:00 EST --> <row><v> NaN </v><v> NaN </v></row>
> <!-- 2000-02-24 16:55:00 EST --> <row><v> 8.5213396119e+07 </v><v> 4.2545913160e+07 </v></row>
> <!-- 2000-02-24 17:00:00 EST --> <row><v> 1.8505596422e+05 </v><v> 2.4762237483e+04 </v></row>
> 
> 
> 
> 
> 

Mike Boldi
mboldi at shore.net
(781) 586-6178

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