[rrd-developers] [PATCH] src/rrd_graph.[ch]: Implemented the ":daemon=..." option for "DEF:" commands.

Florian Forster rrdtool at nospam.verplant.org
Thu Feb 25 02:37:48 CET 2010

Hi Thorsten,

On Wed, Feb 24, 2010 at 01:02:57PM -0800, Thorsten von Eicken wrote:
> Very cool! So now the main missing piece is the creation of RRD files,
> correct?

I think so. For a completely networked solution, I think you'd need
create, write and read via networking sockets, i.e. "CREATE", "UPDATE"
and "FETCH".

I guess that data collection and storage is done on the same machine(s)
in many cases, though (i.e. no *networked* solution). The updates merely
go through the daemon for caching purposes. In this (common?) case,
creating the files directly is an okay option. This is, for example,
what the "rrdcached" plugin of collectd is currently doing.

So in theory I agree, but it's not my top priority at the moment. What
would you use a networked "CREATE" for?

I added the "FETCH" command, by the way, because we wanted to do graph
creation, billing and fault detection on machines other than the (very
busy) machines doing the caching / updating.

Florian octo Forster
Hacker in training
GnuPG: 0x91523C3D
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