[rrd-users] Re: Weird #'s from basic rrdgraph

[Clarence]

If I use rrdfetch along with  my senerio I see all of the actual values.

For example:


rrdgraph         1/1/2001  -  3/17/2001
    The graph for 1/15 - 1pm  would equal 70 pages
 and the
   rrdfetch tool will report  140 for the same date and time. (1/15 -1pm)

This is crazy!!!

I create my RRD's  with the same size for the  AVERAGES and MAX data.
So no matter what width/time frame I select I should see the correct data.



Clarence Hart



----- Original Message -----
From: "Alex van den Bogaerdt" <alex at slot.hollandcasino.nl>
To: "Clifton Royston" <cliftonr at lava.net>
Cc: "Clarence Hart" <rti1clh at ismd.ups.com>; "RRD users"
<rrd-users at list.ee.ethz.ch>
Sent: Saturday, March 17, 2001 4:37 AM
Subject: [rrd-users] Re: Weird #'s from basic rrdgraph


>
> Clifton Royston wrote:
> >
> > In the case I was looking at, if I picked a *narrower* time window
> > (making sure it was aligned exactly on the width of the MAX RRA, 2
> > hours) and queried for the MAX, I got a large MAX value (94.5%.) If I
> > picked a wider time window which was a strict superset (included) of
> > the narrower time window, but which is not necessarily aligned on the
> > width of the MAX RRA, and queried the same DSes on the same data file,
> > I got a totally different, and much lower MAX value.
>
> This shouldn't happen.  You are sure that you use the max values
> from the max RRA and that you are using the newest rrdtool ?
>
> so: /usr/local/rrdtool-1.0.33/bin/rrdtool
>     --end <some number on a 2-hour UTC boundary>
>     --start end-<some number representing an even number of hours>
>     DEF:bytes=my.rrd:myds:AVERAGES
>     DEF:maxes=my.rrd:myds:MAX
>     GPRINT:bytes:AVERAGE:"%6.2lf %sbps"
>     GPRINT:maxes:MAX:"%6.2lf %sbps"
>
> This shouldn't produce different results on the maxima for
> different RRAs.  I don't know about the perl hooks but this
> should not make a difference I guess.
>
> What happens if you use "rrdtool fetch" with that time frame
> and with the "--resolution" flag?
>
> cheers,
> --
>    __________________________________________________________________
>  / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
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