[rancid] eliminating noise

[Jake Secrist]

I had thought about this a while back but never did anything with it.

I think you would either have to go back over the previous saved version of the config and compare the desired values.  Then maybe show the line as something like:

! External Temperature............................. +28 C (+/- 10 C)

OR - pull out the values and store them in a file to be compared to the next RANCID run.

The problem is where to define the starting point.  I think using the value from the first RANCID a run would work well.  Then all future runs would be compared with that value.  If a future RANCID run finds a value that is not within the 'variance' then the new value would become the 'default' value and subsequent RANCID runs would compare to the new value.  And so on.

I will try some things and get back to you.


> On Nov 19, 2014, at 6:08 PM, Wayne Eisenberg <Wayne.Eisenberg at CarolinasIT.com> wrote:
> 
> Hey all,
>  
> Does anyone have any ideas on how we can modify rancid to ignore minor differences in things like fan speed and temperature? See the below:
>  
> - ! External Temperature............................. +29 C
> + ! External Temperature............................. +28 C
>  
> -  ! Fan Status....................................... 3432 rpm
> + ! Fan Status....................................... 3301 rpm
>  
> These two items create a lot of noise. The temperature changes by 1 or 2 degrees – very insignificant, but it gets caught by diff. The same with the fan speed. Any character change trips the diff. +/- 10% or greater is a more reasonable change to note. But I don’t know how to modify the scripts to do that comparison. Any ideas?
>  
> Thanks,
> Wayne
>  
>  
> 
> 
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