[rrd-users] Re: Spikes...

[George Dau]

Spikes have been discussed. If you want to stop them from happening, dont
use the "counter" data type, use "derive" and set the minimum value to 0
(zero). You will loose some data when the counter wraps, but you wont get
spikes.

Export the rrd using "rrdtool dump" and edit the data types changing them to
"derive" and setting the minimum to zero, then reload using "rrdtool
restore" (I think).

You can also edit that XML from the dump to remove the spikes. Maybe this is
only worth doing in the yearly data, since the others will expire.

-----Original Message-----
From: Kristjan Thordarson [mailto:kth at hp.is]
Sent: Wednesday, 23 January 2002 10:58 AM
To: rrd-users at list.ee.ethz.ch
Subject: [rrd-users] Spikes...



Hi all.  I'm new to this list, sorry if this question has been asked many
times (searched archives with little luck)....

I'm monitoring ATM sub interfaces on my cisco box, when the box is reloaded
huges spikes show up in my graphs.  Is there a way to "edit" these 
out or somehow fix them?


I've tried a tool called killspikes but I get this error when I run it:


Found 2 datasources
Malformed input at /home/kth/rrdtool-1.0.33/contrib/killspike/killspike.pl
line 73, <IN> line 44.


Regards,
Kristjan Thordarson




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