Problem converting 32 bit disk-rrd's to 64 bit

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Hermann-Josef Beckers

Problem converting 32 bit disk-rrd's to 64 bit

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New to this list. I posted this yesterday on the hobbit/xymon-users list, but
no solution so far:

"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 <[hidden email]>

...

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 <[hidden email]>

...

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)
"


Following a hint from a hobbit user, I also tried to use a rrdtool in between the versions above:

dump with 1.0.49 on 32 bit, restore with 1.2.23 on 32 bit, dump with the same 1.2.23
on 32 bit, restore with 1.3.4 on 64 bit. No difference. And it effects all graphs, not only
the disk graphs.

Any hints?
hjb





Any hints?

Hermann-Josef Beckers

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