[rrd-users] Bug in dump/restore

Fabian Zimmermann fabian.zimmermann at bluecellnetworks.com
Tue Oct 20 12:11:05 CEST 2009


Hello,

is there a known bug in dump/restore of rrdtool? I tried to find some 
more information, but google didn't return anything useful.

If I do a:

rrdtool dump test.rrd > dump.xml

i get:

<!-- 2009-10-08 01:50:00 CEST / 1254959400 --> <row><v> 1.4980000000e+01 
</v><v> 9.5716666667e+00 </v></row>
<!-- 2009-10-08 01:55:00 CEST / 1254959700 --> <row><v> 3.8149000000e+02 
</v><v> 7.0007666667e+02 </v></row>
<!-- 2009-10-08 02:00:00 CEST / 1254960000 --> <row><v> 2.8804000000e+02 
</v><v> 5.3001333333e+02 </v></row>
<!-- 2009-10-08 02:05:00 CEST / 1254960300 --> <row><v> 2.8804000000e+02 
</v><v> 5.3001333333e+02 </v></row>

followed by:

rrdtool restore dump.xml restored.rrd
rrdtool dump restored.rrd

and I got:

<!-- 2009-10-08 01:50:00 CEST / 1254959400 --> <row><v> 1.0000000000e+00 
</v><v> 9.0000000000e+00 </v></row>
<!-- 2009-10-08 01:55:00 CEST / 1254959700 --> <row><v> 3.0000000000e+00 
</v><v> 7.0000000000e+00 </v></row>
<!-- 2009-10-08 02:00:00 CEST / 1254960000 --> <row><v> 2.0000000000e+00 
</v><v> 5.0000000000e+00 </v></row>
<!-- 2009-10-08 02:05:00 CEST / 1254960300 --> <row><v> 2.0000000000e+00 
</v><v> 5.0000000000e+00 </v></row>

I tested this with 1.3.1 (Lenny) and 1.3.8 (Squeeze). I also tried 
"--no-header" and/or "--range-check", but still the same.

Any ideas?

Thanks a lot,
Fabian



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