[rrd-users] Simple Question about RRdtool fetch

Korrawit Yindeeyoungyeon skaaa.at0m at gmail.com
Sat Feb 19 00:21:13 CET 2011


Hi, I'm newbie here. I have a question about RRDTool Fetch.

Suppose data is look like this,
.
.
.
1298003400: 1.8313 0.41030000000000005 0.17350000000000002
1298003460: 1.2612999999999999 0.374 0.18970000000000004
1298003520: 1.2772000000000001 0.33209999999999995 0.18380000000000002
1298003580: 1.5003 0.33520000000000005 0.20909999999999998
1298003640: 1.3737 0.3738 0.11479999999999999
1298003700: 1.6837000000000002 0.378 0.18950000000000003
1298003760: 1.5067 0.33120000000000005 0.2764
1298003820: 1.1833 0.317 0.18150000000000002
1298003880: 1.7692 0.4276 0.07279999999999999
.
.
.

Next, I use fetch command and specific time.

rrdtool fetch CPU_utilization.rrd AVERAGE  --start 1298003520 --end 1298003640

The results are

1298003580: 1.5003000000e+00 3.3520000000e-01 2.0910000000e-01
1298003640: 1.3737000000e+00 3.7380000000e-01 1.1480000000e-01
1298003700: 1.6837000000e+00 3.7800000000e-01 1.8950000000e-01


Question : Why the result is start from 1298003580 to 1298003700, it
should be 1298003520 to 1298003640, right ?

If you want some any information about my rrdtool configuration, feel
free to ask.


Best Regard,

Korrawit Yindeeyoungyeon



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