[rrd-users] rrdtutorial not working

[Tjerk.Kusters at imtech.nl]

Hello,

I have a problem to get the example in the tutorial to work, at least on a
Fedora 6 Vmware machine it is not working. I am getting an empty graph. The
graph is oke when a I run the same command's on Windows .

Fedora: RRDtool 1.2.23 (rrdtool-1.2.23-6.fc6)
Windows: RRDtool 1.2.23 (binary from website)

Looks like the samething happens with a script I created...

[root at master dp02]# rrdtool lastupdate sensorinfo.rrd
 cpufan cputemp mbtemp

1189002120: 3351 41 33


When I use this command:

[root at master dp02]# rrdtool xport --start end-1h
DEF:ds=sensorinfo.rrd:cputemp:AVERAGE XPORT:ds:mem

I am getting:

<?xml version="1.0" encoding="ISO-8859-1"?>

<xport>
  <meta>
    <start>1188998580</start>
    <step>60</step>
    <end>1189002180</end>
    <rows>61</rows>
    <columns>1</columns>
    <legend>
      <entry>mem</entry>
    </legend>
  </meta>
  <data>
--cut--
    <row><t>1189001880</t><v>NaN</v></row>
    <row><t>1189001940</t><v>NaN</v></row>
    <row><t>1189002000</t><v>NaN</v></row>
    <row><t>1189002060</t><v>NaN</v></row>
    <row><t>1189002120</t><v>NaN</v></row>
    <row><t>1189002180</t><v>NaN</v></row>
  </data>
</xport>

Any idea what the problem can be?

Regards,
Tjerk