[rrd-users] Data stored in.rrd but showing blank graph

[Alex van den Bogaerdt]

> Hi ,
>
> I have installed nagiosgraph.Data is being store in .rrd files but not
> graphing and displaying empty graph . Here is the output of one of .rrd .
> Kindly help on this issue .

[snip]

What you need to do is look at the output of rrdtool dump.  Chances
are you will see that RRDtool is storing "NaN".  If so, you need to
find out why it is doing so.  My bet is that your updates are more
than 600 seconds apart.

HTH
Alex