[rrd-users] RRDTool, perl, and Oracle

Robin Norwood robin at pattern.net
Tue Jul 9 16:35:53 MEST 2002


I have a project for which the graphing capabilities of RRDTool would be 
very helpful.  I've looked into the RRDs perl module, and I have a couple 
of questions:

We have an Oracle database, and it would be nice if I could store RRD's 
data in Oracle rather than in a text file - however, the perl interface 
seems to only accept a filename to store the data in for the RRDs::create 
and RRDs::graph functions, for instance.  Is there a way to either: 

a) Point RRDs to something else when storing and retrieving the data - 
Oracle itself, or even a filehandle or a hash, so I can use Oracle 
(which is on another box with plenty of hard disk space for all this data)

or b) Give RRDs the data and get a graph out without using a file to store 
the data first - so I can store the data in Oracle myself and pour it into 
RRDs to draw the graph.

I guess what I'm saying is that I'd like to use RRDs graph drawing 
capabilities but not necessarily it's data storage.  Though it would be 
nice to have the 'round-robin-ness', I just don't want it to have to read 
from and write to files on the web server - I'd rather have it read from 
and write to Oracle.




Robin Norwood

"The Sage does nothing, yet nothing remains undone."
-Lao Tzu, Te Tao Ching

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