[rrd-users] About rrdtool dump method

Howard Jones howie at thingy.com
Tue Jun 22 17:51:05 CEST 2010

On 22/06/2010 16:45, Wagner Pereira wrote:
> -------------------
> cacti:/var/lib/cacti/rra# rrdtool dump alpine_traffic_in_29.rrd > 
> alpine_traffic_in_29.rrd
> ERROR: mmaping file 'alpine_traffic_in_29.rrd': Invalid argument
You are dumping the rrd file onto itself! The second filename should be

That is why you end up with a 0 length file.

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