[rrd-users] Merging data from 2 rrd files.

[Fabrice Rafart]

Hello,

I used MRTG with target like IP.ifNumber (x.x.x.x.1 for eth0). Then I use
"LogFormat: rrdtool" and I have some x.x.x.x.1.rrd. Latter, I remake my MRTG
cf with target like IP_IfName (usr/bin/cfgmaker --ifref=name --ifdesc=descr
...). Then I have new rrd file x.x.x.x_et0.rrd.
I'd like inject old data in the new rrd file but the time hurt me !

ERROR: illegal attempt to update using time 1031184000 when last update time
is
1032172203 (minimum one second step)


I use rrdtool fetch and sed for create a file like :
1013126400:1.8000000000e+01:1.2500000000e+02
1013212800:4.1000000000e+01:3.0100000000e+02
1013299200:1.4000000000e+01:1.9500000000e+02
1013385600:1.1000000000e+01:1.8800000000e+02
1013472000:8.0000000000e+01:4.4300000000e+02
1013558400:7.1000000000e+01:4.1200000000e+02
1013644800:6.7000000000e+01:3.8800000000e+02
1013731200:7.6000000000e+01:4.2100000000e+02
1013817600:4.6000000000e+01:2.9800000000e+02
1013904000:1.0000000000e+01:1.8500000000e+02
[...]

and :
for i in `cat fichier`
do
rrdtool update x.x.x.x_et0.rrd $i
done

Could you help me ?
--
Fabrice Rafart.
Administrateur systèmes et réseaux. EFS IDF

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