It's best to use the latest CollectD package. You can find instructions for setting up the repo's for Debian and Redhat based distros here:
Change the following lines in your collectd.conf file. Where fingerprint is the string from /etc/dataloop/agent.finger. You may need to uncomment the LoadPlugin line.
<Plugin write_graphite> <Node "fingerprint"> Host "graphite.dataloop.io" Port "2003" Protocol "udp" LogSendErrors true Prefix "" Postfix ".collectd" StoreRates true AlwaysAppendDS false EscapeCharacter "_" </Node> </Plugin>
The metrics will appear under 'collectd' when browsing in the Dataloop web interface.
Lots of open source tools have a Graphite backend. In general you should only need to configure two settings; the graphite server address, and the metric prefix. Where our server address is graphite.dataloop.io and our metric prefix is your fingerprint.