[rrd-users] Re: DS Choice

[paul at oninit.com]

Having run 6 weeks now the graphs are perfect:-))  I've reset the 
counter (as can happen for real). Now I have no graphs, just
flat lines, with a single spike when the counter was reset. So the 
resetting of the counter appears to have 'wiped out' 6 weeks of 
history.

using rrdtool info on the rrd and looking at the time the counter
was reset I can't see a spike in the data, the value is 50(ish)
on each increment.

I must be missing something but I can't see what it is!!!!

Alex van den Bogaerdt wrote:
> 
> On Thu, Oct 23, 2003 at 09:52:47AM +0100, paul at oninit.com wrote:
> > I have a data source that steadily increases and I've been using
> > a DS of COUNTER and I get a nice spiky line - just what I'm after.
> 
> good.
> 
> > However, if for some reason the data counter is reset I loose
> > all the history data and start a 'new' spiky line.  The resetting
> > would typically only happen once/twice per year but the counter
> > will probably wrap the 2G every few months.
> 
> What program is deleting your history?  Surely this isn't rrdtool.
> 
> > Am I using the correct DS?
> 
> >From what I read here, it is.  The worst thing that can happen is
> that rrdtool detects a ___HUGE___ spike.  This is why setting min
> and max (during rrdtool create) is a good idea.
> 
> Alex
> 
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