how do i remove monitored hosts from graphite console

Question

I was able to setup graphite,carbon and whisper without a problem.
I have collectd sending data into carbon and all of that is working great.
I can generate graphs look at reports without a problem.
Now a couple of the VM's that were being monitored have been removed.
How do i remove these VM's from the graphite console and purge their data from whisper?
Thanks

Answer 1

The Graphite-webapp dynamically generates the graph-tree from the contents of the file-system at the location of the storage. The default is- /opt/graphite/storage/whisper/stats/. Delete the .wsp files and they will no longer appear in the webapp.

Answer 2

Removing the whisper files is the first step, but you also will need to cull the empty directories from your whisper directory:

find /var/lib/carbon/whisper -type d -empty | xargs sudo rmdir