[mrtg] Re: trying to use external script for graphing

[PAUL WILLIAMSON]

>>> "John Barbieri" <jbarbieri at metrocastcablevision.com> 12/13/2004
10:56:43 AM >>>
>hello list.

hello John.

>im trying to use an external script to do graphing. when i run the 
>script manually, i get output from the script, but nothing appears on

>the graphing.
>
>the output looks something like this:
>
>box-prompt: /bin/sh /home/jbarbieri/scripts/netscreen3.sh
>2
>27433
>box-prompt:

Output looks good.

>the numbers do not reset to 0 when they are read, and the DO
increment, 
>so using gauge wont help for that.
>
>
>the number it increments is small, but im not to sure that has
anything 
>to do with it, eg, over a 5 minute period, the top number wont move,
but 
>the bottom might move by 5.
>

<snipped the rest>

The problem is that if the number increments less than 300, you'll 
end up with a number less than one, which MRTG does not 
deal with.

Remember that MRTG does rates per five minutes by default.
If you have a number that is incrementing less than 300 per five 
minutes, you'll end up with a number less than 1, which 
will get dropped.  Either use RRDTool or multiply your 
number by 300 (attacks per 5 minutes).

Paul

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