I followed this guide to install graphite on ubuntu 14.04(VM).
I completely did all steps to install/configure Graphite.
On step 5 "Verify Operations"(p.20), finally, I did "echo "test.metric 50 `date +%s`" | nc 127.0.0.1 2003" on this VM.
But I cannot see anything on the right tree of graphite-web.

Expecting misconfigured carbon, I checked the logs and db as follows.
root@harvest-graphite:~# date
Thu Mar 3 13:33:40 JST 2016
root@harvest-graphite:~# echo "test.metric 50 `date +%s`" | nc 127.0.0.1 2003
root@harvest-graphite:~# tail -n5 /var/log/carbon/listener.log
03/03/2016 13:18:20 :: MetricLineReceiver connection with 127.0.0.1:58116 closed cleanly
03/03/2016 13:18:27 :: MetricLineReceiver connection with 127.0.0.1:58117 established
03/03/2016 13:18:27 :: MetricLineReceiver connection with 127.0.0.1:58117 closed cleanly
03/03/2016 13:33:50 :: MetricLineReceiver connection with 127.0.0.1:45147 established
03/03/2016 13:33:50 :: MetricLineReceiver connection with 127.0.0.1:45147 closed cleanly
root@harvest-graphite:~# tail -n5 /var/log/carbon/creates.log
03/03/2016 02:24:59 :: new metric carbon.agents.harvest-graphite-a.pointsPerUpdate matched aggregation schema default_average
03/03/2016 02:24:59 :: creating database file /var/lib/graphite/whisper/carbon/agents/harvest-graphite-a/pointsPerUpdate.wsp (archive=[(60, 129600)] xff=0.5 agg=average)
03/03/2016 02:36:14 :: new metric test.metric matched schema default_1min_for_1day
03/03/2016 02:36:14 :: new metric test.metric matched aggregation schema default_average
03/03/2016 02:36:14 :: creating database file /var/lib/graphite/whisper/test/metric.wsp (archive=[(60, 1440)] xff=0.5 agg=average)
root@harvest-graphite:~# ls -all //var/lib/graphite/whisper/test/
total 28
drwxr-xr-x 2 _graphite _graphite 4096 Mar 3 02:36 .
drwxr-xr-x 4 _graphite _graphite 4096 Mar 3 02:36 ..
-rw-r--r-- 1 _graphite _graphite 17308 Mar 3 13:33 metric.wsp
But obviously "metric" is successfully listened and created.
Could you tell me how I could see test metric on the graph of graphite-web?
Any suggestion is really appreciated.