[Nagiosplug-devel] Adaptive Latency Checking Script

[Thomas Guyot-Sionnest]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 11-08-26 04:10 AM, Samuel Kidman wrote:
> Hello

Hi

> I was just wondering if anyone knows if anything is out there that
> checks latency and sets threshholds by itself? Ie. The check
> continuously checks latency to a host and notices if the latency goes up
> significantly (say, by a percentage of the ‘normal’ value)
> 
>  
> 
> I’ve tried to write something like this myself but I get stuck on two
> things:
> 
>  
> 
> 1.       How do you make it allow for situations where the latency
> increases to a new level for a long period of time?
> 
> 2.       How do you detect what the ‘good’ value is?

I would build something like it based on RRD's aberrant Behaviour
Detection. See:

http://oss.oetiker.ch/rrdtool/doc/rrdtool.en.html#IAberrant_Behavior_Detection

http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html#IAberrant_Behavior_Detection_with_Holt_Winters_Forecasting

http://oss.oetiker.ch/rrdtool/doc/rrdgraph_examples.en.html#IAberrant_Behaviour_Detection

http://cricket.sourceforge.net/aberrant/rrd_hw.htm


RRD are generally for graphing, but you should be able to get the
relevant data suitable for a script with "rrd fetch" as well - or by
using directly RRD's API if available in the language you write your
plugin in.

- -- 
Thomas
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEUEARECAAYFAk5XiMMACgkQ6dZ+Kt5BchYaNACXV4aPGzEqhZERkxc8BmAkS9KQ
SwCfe3M9Hu5TyV3G+fTWPfxWjLGtZ2I=
=jZzB
-----END PGP SIGNATURE-----