Graphs are missing data, but it's there!

["Ward, Martin" <Martin.Ward (at) colt.net>]

All,

I have a problem with one machine where its data is not being shown in
the graphs even though the data exists.

The machine in question's Hobbit client sends five pieces of numeric
data (email queues) and these are displayed on the web page for this
service:

====
Thursday July 24 11:29:11 UTC 2008

ActiveStatus:  green
<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif> 
ActiveQueue: 106
ActiveTrend: tendency rising with -60 mails.
BounceStatus:  green
<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif> 
BounceQueue: 58
BounceTrend: tendency falling with 3 mails.
DeferStatus:  red <http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif> 
DeferQueue: 150464
DeferTrend: tendency falling with 95 mails.
CorruptStatus:  green
<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif> 
CorruptQueue: 0
CorruptTrend: amount equal to last measure.
IncomingStatus:  red <http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif> 
IncomingQueue: 247049
IncomingTrend: amount equal to last measure.

 Deferred Queue is too high but is decreasing already.

====
These numbers change over time and the values are accurate.

However, the graph that is displayed below this data is blank. I have
historic data, the files exist, and what is more I have other machines
that are configured identically to this one where the data IS graphed
correctly.

Hobbit graphs are a bit of a black hole to me, can anyone suggest where
I might look?

|\/|artin


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