On Sat, Mar 03, 2007 at 10:18:30AM -0800, Travis Spencer wrote:
> On 3/2/07, Alex van den Bogaerdt <[EMAIL PROTECTED]> wrote:
> > If you're interested in as much data as possible, without paying too
> > much attention to resolution, go for the RRA with the largest amount
> > of time in it.
>
> I'm only interested in knowing the oldest time stamp for the AVERAGE
> CF. The least expensive, quickest way to get this is what I would
> like.
Define "the" average cf.
> What do others think of a patch to allow a start time of `beginning'
> which would go through the steps Alex has outlined in previous posts
> to include data from the "beginning" of an RRD file? Thus,
>
> rrdtool fetch foo.rrd AVERAGE -s beginning
>
> would return the all averages in foo.rrd.
Questions you need to answer:
Which RRA should be selected, in different cases? Example: what
if no resolution is mentioned, what if an existing resolution is
mentioned, what if a resolution is mentioned which is not available?
You also say: "I'm only interested in knowing the oldest time stamp"...
So, similar to "rrdtool last", you are proposing "rrdtool first".
That's different from getting data out of RRAs.
quote:
$ rrdtool first
RRDtool 1.2.12 Copyright 1997-2005 by Tobias Oetiker <[EMAIL PROTECTED]>
Compiled Apr 27 2006 13:22:35
Usage: rrdtool [options] command command_options
* first - show first update time for RRA within an RRD
rrdtool first filename.rrd [--rraindex number]
RRDtool is distributed under the Terms of the GNU General
Public License Version 2. (www.gnu.org/copyleft/gpl.html)
For more information read the RRD manpages
$
endquote
No, I have not tried this myself.
HTH
--
Alex van den Bogaerdt
http://www.vandenbogaerdt.nl/rrdtool/
_______________________________________________
rrd-users mailing list
[email protected]
https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
