[rrd-users] event2vrule, "Re: Graphing abritary events"
plonka at doit.wisc.edu
Tue Nov 25 20:06:28 CET 2008
On Tue, Nov 25, 2008 at 05:50:31PM +0000, Gerhardus.Geldenhuis at gta-travel.com wrote:
> We use rrdgraph to monitor our application response time and other and
> can see corresponding increase/decrease in values relevant to quarterly
> code releases. What I would like to do is represent distinct events on a
> graph to enable me/others to easily associate rise and fall on the graph
> with specific events. I could just plot it as a "background" fill with
> the max value of the graph but I don't think it is a very flexible
> solution. I am curious if anyone else has done something similar and how
> you have achieved it, any screenshots would be great.
There are samples in this slideshow here, i.e. slides 4 and 8:
> What I would like would be to have a big red dot with some legend
> attached that show up on the graph that can represent specific events in
> Any thoughts and discussion would be appreciated.
I do it with VRULE (vertical rule/line). There is a tool called
"event2vrule" in the FlowScan distribution:
event2vrule takes a text log file, one event per line and adds the
VRULE statements to your graph command automatically. It is described
in the docs here:
plonka at doit.wisc.edu http://net.doit.wisc.edu/~plonka/ Madison, WI
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