Hi,
Running ganglia 3.1.1, RRDtool 1.3.4, Solaris 10/SPARC
In the cluster cpu graph I'd expect the CPU line to be a constant..
While the CPU line does remain contant on the node
graphs, the CPU line in my cluster graph jitters wildly.
If I look into the RRD file for the cluster I see values which I have
some difficulty interpreting:
rrdtool dump __SummaryInfo__/cpu_num.rrd| grep '2009-01-22 15:1'
<!-- 2009-01-22 15:10:00 MET / 1232633400 -->
<row><v> 7.6800000000e+01 </v><v> 1.2000000000e+00 </v></row>
<!-- 2009-01-22 15:10:15 MET / 1232633415 -->
<row><v> 5.1200000000e+01 </v><v> 8.0000000000e-01 </v></row>
<!-- 2009-01-22 15:10:30 MET / 1232633430 -->
<row><v> 6.8266666667e+01 </v><v> 1.0666666667e+00 </v></row>
<!-- 2009-01-22 15:10:45 MET / 1232633445 -->
<row><v> 6.8266666667e+01 </v><v> 1.0666666667e+00 </v></row>
<!-- 2009-01-22 15:11:00 MET / 1232633460 -->
<row><v> 5.9733333333e+01 </v><v> 9.3333333333e-01 </v></row>
<!-- 2009-01-22 15:11:15 MET / 1232633475 -->
<row><v> 8.5333333333e+01 </v><v> 1.3333333333e+00 </v></row>
<!-- 2009-01-22 15:11:30 MET / 1232633490 -->
<row><v> 9.3866666667e+01 </v><v> 1.4666666667e+00 </v></row>
<!-- 2009-01-22 15:11:45 MET / 1232633505 -->
<row><v> 6.8266666667e+01 </v><v> 1.0666666667e+00 </v></row>
However for both my nodes I have consistent values:
node1
<!-- 2009-01-22 15:10:00 MET / 1232633400 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:15 MET / 1232633415 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:30 MET / 1232633430 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:45 MET / 1232633445 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:00 MET / 1232633460 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:15 MET / 1232633475 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:30 MET / 1232633490 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:45 MET / 1232633505 -->
<row><v> 6.4000000000e+01 </v></row>
node2
<!-- 2009-01-22 15:10:00 MET / 1232633400 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:15 MET / 1232633415 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:30 MET / 1232633430 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:10:45 MET / 1232633445 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:00 MET / 1232633460 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:15 MET / 1232633475 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:30 MET / 1232633490 -->
<row><v> 6.4000000000e+01 </v></row>
<!-- 2009-01-22 15:11:45 MET / 1232633505 -->
<row><v> 6.4000000000e+01 </v></row>
What am I overlooking? How does it calculate those values in the
SummaryInfo RRDs?
Gregory
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