[rrd-users] only NaN values

[Folkert van Heusden]

No-one has an idea how to fix these NaN problems?

On Tue, Jan 12, 2010 at 11:44:49PM +0100, Folkert van Heusden wrote:
> A couple of inserts:
> 
> mauer:/usr/local/nagios.check_commands# grep /usr/local/nagios.check_commands/var/weerstationserver/HTTP/time.rrd /tmp/rrd.log 
> /usr/bin/rrdtool update /usr/local/nagios.check_commands/var/weerstationserver/HTTP/time.rrd 1263335162:0.005438
> /usr/bin/rrdtool update /usr/local/nagios.check_commands/var/weerstationserver/HTTP/time.rrd 1263335462:0.002476
> /usr/bin/rrdtool update /usr/local/nagios.check_commands/var/weerstationserver/HTTP/time.rrd 1263335762:0.002664
> /usr/bin/rrdtool update /usr/local/nagios.check_commands/var/weerstationserver/HTTP/time.rrd 1263336062:0.003119
> 
> On Tue, Jan 12, 2010 at 10:19:33PM +0100, Folkert van Heusden wrote:
> > Hi,
> > 
> > I create my .rrd-files like this:
> > 
> > rrdtool create file.rrd --step 300  \
> > 	DS:values:GAUGE:900:U:U  \
> > 	RRA:AVERAGE:0.5:1:2016    \
> > 	RRA:MIN:0.5:1:2016    \
> > 	RRA:MAX:0.5:1:2016    \
> > 	RRA:AVERAGE:0.5:12:744    \
> > 	RRA:MIN:0.5:12:672    \
> > 	RRA:MAX:0.5:12:672    \
> > 	RRA:AVERAGE:0.5:288:730  \
> > 	RRA:MIN:0.5:288:730  \
> > 	RRA:MAX:0.5:288:730  \
> > 
> > Then using this:
> > rrdtool update file.rrd N:0.32
> > I add data to it.
> > This adding data is done multiple times in a 300 second interval and
> > should be averaged. Also the min/max of that interval should be stored.
> > Now when it runs for a while, I would expect values to enter it but if I
> > create a dump of it, I only get 'NaN'.
> > 
> > <?xml version="1.0" encoding="utf-8"?>
> > <!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd">
> > <!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
> >         <step> 300 </step> <!-- Seconds -->
> >         <lastupdate> 1263330962 </lastupdate> <!-- 2010-01-12 22:16:02 CET -->
> > 
> >         <ds>
> >                 <name> values </name>
> >                 <type> GAUGE </type>
> >                 <minimal_heartbeat> 900 </minimal_heartbeat>
> >                 <min> NaN </min>
> >                 <max> NaN </max>
> > 
> >                 <!-- PDP Status -->
> >                 <last_ds> 0.003517 </last_ds>
> >                 <value> 3.5330494778e-02 </value>
> >                 <unknown_sec> 52 </unknown_sec>
> >         </ds>
> > 
> > <!-- Round Robin Archives -->   <rra>
> >                 <cf> AVERAGE </cf>
> >                 <pdp_per_row> 1 </pdp_per_row> <!-- 300 seconds -->
> > 
> >                 <params>
> >                 <xff> 5.0000000000e-01 </xff>
> >                 </params>
> >                 <cdp_prep>
> >                         <ds>
> >                         <primary_value> 0.0000000000e+00 </primary_value>
> >                         <secondary_value> 0.0000000000e+00 </secondary_value>
> >                         <value> NaN </value>
> >                         <unknown_datapoints> 0 </unknown_datapoints>
> >                         </ds>
> >                 </cdp_prep>
> >                 <database>
> >                         <!-- 2010-01-05 22:20:00 CET / 1262726400 --> <row><v> NaN </v></row>
> > ...
> >                         <!-- 2010-01-12 22:10:00 CET / 1263330600 --> <row><v> NaN </v></row>
> >                         <!-- 2010-01-12 22:15:00 CET / 1263330900 --> <row><v> NaN </v></row>
> >                 </database>
> >         </rra>
> > 
> > How can I fix this?
> > 
> > 
> > Folkert van Heusden
> > 
> > -- 
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> 
> 
> Folkert van Heusden
> 
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Folkert van Heusden

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