[rrd-users] Re: Spikes .. again.

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Tue Apr 9 09:32:30 MEST 2002

Ryan Crouch wrote:

> I don't mean to be a pain in the ass, but spiking in my graphs is getting
> out of hand.

Sure this is a problem.  I asume you have proper settings, especially max.
If so, I don't see why spikes should occur in the first place.

> Does anyone know of a tool that will analyse the RRD file or the RRD->XML
> export and look for major discrepancies in data. This is something I could
> possibly write myself, but I'm just checking. There used to be tools like
> killspike etc, but sourcing that kind of thing is near impossible these
> days.

Dump the database with rrdtool dump.
Then restore again with rrdtool restore, and a flag: -r

> Any tips? Ideas ? Hints?

Try to setup a history mechanism.  For instance: keep the values for
each update in a file per day.  Keep a few of these files.  Also keep
a copy of your database file each time.  When a spike occurs, save the
history files.

This should make it possible to debug the problem.

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