[rrd-users] Re: Argument List too long?

Simon Hobson linux at thehobsons.co.uk
Mon Dec 18 20:00:55 MET 2006

Kant, D (Dave) wrote:

>I'm not sure I understand the correct format for invoking rrdtool's pipe mode.
>Do you mean something like this?
>  rrdtool graph < my_long_arg_list.txt > out
>where my_long_arg_list.txt would look something like this?
>[]cat my_long_arg_list.txt
>site_disk_HMW6dFGqY4.png -t 'Used Disk Storage' -s -3m -w500 -h125 -l 0 \
>DEF:A=A_multidisk.rrd:Used:MAX \
>DEF:B=B_multidisk.rrd:Used:MAX \

I use rrdcgi like this :

cat "piles of graphing stuff including all the cdefs etc" > ${TempFile}

/usr/bin/rrdcgi --filter ${TempFile}

rm ${TempFile}

On one graph I'm doing 510 stacked areas (in and out traffic rates 
for a class C subnet), half of them with vdefs (to invert the 'out' 

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