[rrd-users] Re: Spikes Again

[Alex van den Bogaerdt]

Ryan Crouch wrote:

> I am trying to remove some spikes from some graphs that have failed today.
> There is about half an hour of NaN records, which cause an 80mbit spike.

Spikes are usually the result of a device restarting, together with
a faulty configuration of your RRD.  You may want to check your settings
such as xff and min/max.

> When I remove the NaN's nothing happens, and even if I remove the surround
> ten lines, before and after, nothing happens to improve the graph spikes.

I think you mean that you've edited an xml dump?  If so, you shouldn't
just remove lines.

80 Mbps will show up as a number like 1.00000e+07, you could change such
numbers into NaN.

> Killspike gives me ..
>  
> perl killspike.pl 
> Found 2 datasources
> Malformed input at killspike.pl line 73, <IN> line 44.

Slight variations in the xml dump format may cause these kind of
errors, it seems that the script needs to be updated to handle
the current output format.

HTH
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