[hobbit] Problem converting 32 bit disk-rrd's to 64 bit

[Alan Sparks]

Hermann-Josef Beckers wrote:
>
> Hello,
>
> not exactly a hobbit problem, but as I am using rrd only with hobbit:
>
> I am converting my old hobbit/xymon server to a new one  Copying just
> the data/rrd directory
> results in the message "ERROR: This RRD was created on another
> architecture".
> So I used "rrdtool dump <file>.rrd > <file>.xml" on the old
> and "rrdtool restore  <file>.xml <file>.rrd -f" on the new server.
> Using the "--no-header"
> option to rrddump makes no difference. No error messages during the
> restore and no
> errors when I call the web pages.
>
> The new disk values in the rrd graphs are only 1/10 of the original
> size, e. g. a disk which is
> 82 % filled, shows up with only  8 %.. The text lines generated from
> the client data are correct.
>
> Relevant data from the old server:
>
> rrdtool -v
> RRDtool 1.0.49  Copyright 1997-2004 by Tobias Oetiker <tobi at oetiker.ch>
> ...
> uname -a
> Linux ls0003.kreis-steinfurt.lokal 2.6.8.1-24mdk #1 Fri Jan 14
> 03:01:00 MST 2005 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz unknown
> GNU/Linux
>
>
> Relevant data from the new server:
> rrdtool -v
> RRDtool 1.3.4  Copyright 1997-2008 by Tobias Oetiker <tobi at oetiker.ch>
> ...
> uname -a
> Linux lscopy02 2.6.27.21-0.1-xen #1 SMP 2009-03-31 14:50:44 +0200
> x86_64 x86_64 x86_64 GNU/Linux
>
>
> Screenshots of the old/new hobbit/xymon-webpages available on request
> (2x ~120K pdfs)
>
> Any hints?
> Hermann-Josef Beckers
>

Can't say I've ever seen this syndrome - but a suggestion - can you
temporarily install a more recent version of rrdtool on the old server
to use for export, so you do not have such a version disparity between
the two systems?  I can't speak to RRDtool 1.3, have only used up to
1.2.27 for Hobbit.
-Alan