[hobbit] strange graph behavior - random machines & graphs

[Gary Baluha]

I have recently noticed a strange thing happening with some of the rrd
graphs generated by Hobbit.  When you look at the graph, it looks as though
the rrd data is one one format (gauge), but the graph is generating it in a
different format (derive).  I can't seem to find any pattern to the hosts or
tests that are exhibiting this strange behavior, and it is only happening on
a handful of graphs.  I have attached a picture of one of these graphs,
since I'm not really sure how to describe it.  Note the huge numbers
displayed on the curr/min/avg/max line.

Any idea what's going on here?  When I dump the RRD file manually,
everything looks okay.  I'm running Hobbit 4.2.0 with the 2007-02-09
allinone patch (I believe the latest).  This has only happened in the past
few weeks, though when exactly it started, I don't know.  Any ideas?
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