[rrd-users] Re: hourly displays but not daily

Serge Maandag serge.maandag at staff.zeelandnet.nl
Mon Oct 14 22:16:58 MEST 2002

That was not clear to me from your mail.

We cannot answer the question without knowing what you use to generate your graphs or how your rrd database is setup. Do a rrdtool info to see whether you have a daily rra or do a rrdtool dump tosee if the daily rra contains data.


-----Original Message-----
From: David Coder [mailto:dcoder at verio.net]
Sent: maandag 14 oktober 2002 21:59
To: Serge Maandag
Cc: rrd-users at list.ee.ethz.ch
Subject: RE: [rrd-users] hourly displays but not daily

i may be obtuse, but i don't see how that accounts for the fact that the daily
graph doesn't display *any* of the data of the hourly graph.  it's just blank.


On Mon, 14 Oct 2002, Serge Maandag wrote:

:Date: Mon, 14 Oct 2002 21:55:52 +0200
:From: Serge Maandag <serge.maandag at staff.zeelandnet.nl>
:To: David Coder <dcoder at verio.net>, rrd-users at list.ee.ethz.ch
:Subject: RE: [rrd-users] hourly displays but not daily
:Remember that the daily rra is an average of more than one primary data point.
:Consider this scenario:
:- The hourly graph uses 1 minute samples 
:- The daily graph uses 5 minute samples
:- The 1 minute samples alternate between 0 and 50
:In this scenario the daily graph will show samples of 20 ( =(0+50+0+50+0)/5 ).
:You can define a max rra instead of an average rra if that's more to your likings.
:-----Original Message-----
:From: David Coder [mailto:dcoder at verio.net]
:Sent: maandag 14 oktober 2002 20:52
:To: rrd-users at list.ee.ethz.ch
:Subject: [rrd-users] hourly displays but not daily
:having been away for a week i have found on my return that the "daily" graph
:does not reflect any of the data of the "hourly" graph on some interfaces.
:am i right in assuming that these graphs are constructed from the same rrd's? 
:if so, what could account for this anomaly?
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