[mrtg] RES: free &used memory are 0?

[Eduardo Oliveira Scricco (Service)]

Hi,

I tried your script but it didn't worked here.

I have MRTG monitoring memory from my linux box with this simple script:

#!/bin/sh

free -b | grep Mem | while read STR TOTAL USED FREE SHARED BUFFERS
CACHED
do
echo $FREE; echo $USED
done
UPTIME=`uptime | cut -d "," -f1,2 | cut -c14-30`
HOSTNAME=`hostname`
echo $UPTIME
echo $HOSTNAME
exit 0

And for swap, you have only to change the "grep" part to "grep Swap"

Greets,
Eduardo

> -----Mensagem original-----
> De: mrtg-bounce at list.ee.ethz.ch 
> [mailto:mrtg-bounce at list.ee.ethz.ch] Em nome de Marco Ledebur
> Enviada em: sexta-feira, 29 de outubro de 2004 05:16
> Para: mrtg at list.ee.ethz.ch
> Assunto: [mrtg] free &used memory are 0?
> 
> 
> Hello folks!
> 
> I use MRTG-2.10.15 to monitoring the CPU trouble, I/O trouble 
> and free & 
> used memory of my linux machine.
> For all three measurements I use perl scripts.
> CPU & I/O trouble monitoring works fine.
> 
> With a perl script I get the value of the memory from the 
> top-function. I get some value which are right, but the rest 
> of the time free and used memory got the value 0. When I 
> execute the perl script or start mrtg in the terminal it always 
> shows the right values. But MRTG-graphs shows 0.

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