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strange graph behavior - random machines & graphs

list Gary Baluha
Thu, 29 Nov 2007 11:25:34 -0500
Message-Id: <user-d52ceb43d119@xymon.invalid>

Hmm, I just noticed that two completely separate Hobbit servers are having
the exact same problem.  Again, there is no pattern to which graphs are
having this problem, and which ones are not.  I even upgraded to the latest
version of rrdtool (from 1.2.23 to 1.2.26) and that didn't seem to help.

On Nov 28, 2007 5:39 PM, Gary Baluha <user-ae3e15c22de1@xymon.invalid> wrote:
Actually, it looks like this is affecting more hosts than I originally
thought.


On Nov 28, 2007 10:08 AM, Gary Baluha <user-ae3e15c22de1@xymon.invalid> wrote:
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?