[rrd-developers] Demo: RRD - Web 2.0 style

Peter Stamfest peter at stamfest.at
Wed Oct 13 21:16:38 CEST 2010

Hi everybody!

I have set up a little demo for something I have hacked together since 
yesterday: RRD - Web 2.0 style. I can only show you a flash video I 
produced. Its quality is questionable, as the RRD graph output is a little 
blurry (because the recording software used vnc to access the screen + 
video compression), but you'll get the idea.

What's it doing, you ask. Well: It allows to zoom in and out of any rrd 
graph using the mouse wheel and it allows google-maps style panning of the 
graph using the mouse. See for yourself: 


The link uses the wrong mime-type for the file, but I'm too lazy to fix 
this, so you might have to d/l the file and view it locally.

It is implemented using my java-rrd implementation for the server side 
(used via a java servlet) and about 200 lines of java script using jQuery 
and some services exposed using DWR for AJAX between java script and the 
java server side.

Tobi: What I was missing most when implementing this was some indication 
of the absolute date/time a graph refers to. Note the use of the right 
axis label for this. 

In theory, I could provide a standalone servlet (+add'l stuff for DWR) for 
this, but it would require some rewrite of the machinery to make it more 
self contained and I wonder if there is a "market" for this.

The movie shows the interaction between my laptop as the server and an 
Atom-based desktop machine on a LAN. Its responsiveness is not perfect 
(mostly depending on the server side CPU performance), but it was never 
easier to view RRD data for me.

Has this been done before?

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