[rrd-users] rrdtool - manually creating a rrd database with multiple records

[skaarj]

Allright, I've been reading for the last 24 hours on all the documentation
and I still cannot get this done.

I'm trying to run a simulation for an university project. The graph must
have 9 records (I am monitoring 9 parameters from 3 different rivers -
"quantity of rain fallen", "level" and "quantity of water which flows".

I got some numbers from some simulating software someone wrote in C. The
following script is used for creating and updating a rrd database:

#!/bin/bash
rm -rf rivers.rrd
rrdtool create rivers.rrd \
--start 1260399480 \
--step 300 \
DS:rain_river0:GAUGE:600:1:450 \
DS:level_river0:GAUGE:600:40:450 \
DS:flow_river0:GAUGE:600:1:459 \
DS:rain_river1:GAUGE:600:1:450 \
DS:level_river1:GAUGE:600:40:450 \
DS:flow_river1:GAUGE:600:2:450 \
DS:rain_river2:GAUGE:600:1:450 \
DS:level_river2:GAUGE:600:40:450 \
DS:flow_river2:GAUGE:600:2:450 \
RRA:AVERAGE:0.5:12:24 \
RRA:AVERAGE:0.5:288:31


rrdtool update rivers.rrd --template
rain_river0:level_river0:flow_river0:rain_river1:level_river1:flow_river1:rain_river2:level_river2:flow_river2
\
1260399486:1:171:7.08:1.5:113:26.51:1:191:24.12 \
1260399786:7:189:20:2.41:101:16.19:3.11:202:30.31 \
1260400086:16:214:44.1:2.41:100:15.63:3.11:200:29.25 \
1260400386:23:244:83.94:11:164:94.11:3.07:2.14:38.11 \
1260400686:13:227:59.74:6.25:148:47.56:7.39:309:115.43 \
1260400986:19:234:69.61:18.07:193:155.15:13.57:362:169.35 \
1260401286:19:234:69.61:18.07:193:159.88:13.57:362:169.35 \
1260401586:17:221:52.22:60.15:175:116.74:14.7:367:174.74 \
1260401886:14:223:55.17:15.11:187:140.16:18.93:120:254.06 \
1260402186:10:223:55.1:11.49:190:148.96:15.03:120:282 \
1260402486:7:223:55.17:7.42:185:133.62:12.14:120:326.01 \
1260402786:5:223:55.10:5.22:184:135.42:8.68:120:325.79 \
1260403086:2:223:54.53:1.92:17.9:123.5:5.11:120:474.56 \
1260403386:1:198:28.55:1.15:154:77.51:1.75:363:170.2 \
1260403686:1:191:22.04:1.15:143:59.83:1.75:325:131.37 \
1260403986:1:189:20.24:1.15:140:54.95:1.75:314:120.65 \
1260404286:1:207:37.73:1.10:165:97.58:1:322:128.51 \
1260404586:1:197:28.24:1.10:151:73.05:1:288:96.2 \
1260404886:1:196:26.62:1.10:149:68.84:1:282:90.66 \
1260405186:1:194:24.54:1.10:145:63.47:1:270.4:83.6 \
1260405486:1:192:23.09:1.10:143:59.73:1:269:37.66 \
1260405786:1:192:23.04:1.10:143:59.6:1:268:70.48 \
1260406086:1:191:22.23:1.10:141:57.48:1:265:75.71 \
1260406386:2:190:20.99:2.20:140:54.31:2:260:71.52 \
1260406686:2:195:25.97:2.18:148:67.16:2:279:88.45 \
1260406986:4:198:28.35:5.22:160:87.1:4.37:298:105.39 \


time for creating the database is 1260399480, stepping is 300 seconds.

start time for entering data is 1260399486, then data is entered with
initial time + 300 seconds.

now: rrdtool fetch  does NOT provide any data from the rrd database. I just
have the header line with all the DS names, then two rows each with a
timestamp which I cannot find in the input lines, each row displays "nan"
(not a number?) 9 times.

and of course, no graph because somehow the data goes into the database in a
wrong way.

Where I did wrong?

thanks
[skaarj]
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