[rrd-users] Re: Database never updates

Alex van den Bogaerdt alex at ergens.op.het.net
Mon May 24 20:11:53 MEST 2004

On Mon, May 24, 2004 at 01:19:02PM -0400, Geoffrey Gallaway wrote:
> Hello, I'm trying to create a bandwidth utilization graph for my router. I
> don't want to install SNMPd and use up the little RAM I have in the box so I
> just decided to write a shell script to wrap ifconfig. However, it's not
> working, the database is created but no values are ever entered. just ton's
> of NaN's. The script is below:

Updating with "unknowns" is also updating!  If there really is no update,
either you get errors or you never call the update script.

> rrdtool update /home/geoffeg/rrdscripts/eth0.rrd N:$rx:$tx

Check parameters for above line.  For instance, duplicate the
line and prefix one with "echo" so you can examine what's happening.

This should get you started on debugging.

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you reply to me off-list, you'd better tell me you're doing so.  If
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