Hello,
I'm a kind of beginner in RRD and I already have some problems. I have
created a few databases like that:
rrdtool create $PATH_DB/$FILE.rrd --step 360 \
DS:in:COUNTER:300:U:U \
DS:out:COUNTER:300:U:U \
DS:in_disc:COUNTER:300:U:U \
DS:out_disc:COUNTER:300:U:U \
DS:in_err:COUNTER:300:U:U \
DS:out_err:COUNTER:300:U:U \
RRA:AVERAGE:0.5:1:600 \
RRA:AVERAGE:0.5:6:700 \
RRA:AVERAGE:0.5:24:775 \
RRA:AVERAGE:0.5:288:797 \
RRA:MIN:0.5:1:600 \
RRA:MIN:0.5:6:700 \
RRA:MIN:0.5:24:775 \
RRA:MIN:0.5:288:797 \
RRA:MAX:0.5:1:600 \
RRA:MAX:0.5:6:700 \
RRA:MAX:0.5:24:775 \
RRA:MAX:0.5:288:797
After the data were collected, I saw the graph is interrupted. `rrdtool
fetch' says me:
in out in_disc out_disc in_err out_err
1006464960: 0.0000000000e+00 4.8733333333e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 8.1333333333e-01
1006465320: 0.0000000000e+00 5.4115254237e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 8.0338983051e-01
1006465680: nan nan nan nan nan nan
1006466040: nan nan nan nan nan nan
1006466400: 0.0000000000e+00 4.9387205387e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 7.6430976431e-01
1006466760: 0.0000000000e+00 4.1243936954e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 6.6405601913e-01
1006467120: nan nan nan nan nan nan
1006467480: 0.0000000000e+00 4.4969387755e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 7.2789115646e-01
1006467840: 0.0000000000e+00 4.4969387755e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 7.2789115646e-01
1006468200: nan nan nan nan nan nan
1006468560: nan nan nan nan nan nan
1006468920: 0.0000000000e+00 3.2775510204e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 5.4761904762e-01
1006469280: 0.0000000000e+00 4.2733333333e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 7.0333333333e-01
1006469640: 0.0000000000e+00 4.2733333333e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 7.0333333333e-01
1006470000: 0.0000000000e+00 4.1812080537e+01 0.0000000000e+00
0.0000000000e+00 0.0000000000e+00 6.8791946309e-01
As you can see, the graph is interrupted by UNKNOWN values. I tried many
times with different values for step (10,60,360 seconds) and for RRA
xff,steps,rows. Nothing changed! I know I'm missing something, but I
don't know what.
Another question: what is the role of xff (xfiles factor) in the
calculation; what is the formula?
Thank you for your time.
--
Catalin Bucur mailto:cata at cce.sidex.ro
Technical Support Engineer - Electronic Computing Centre
Sidex S.A. - Galati - Romania
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