System NOT running to use fully qualified hostnames

Related to:

• How to verify a CouchDB 2.0 cluster setup
• http://stackoverflow.com/a/42503412/1269466
• http://stackoverflow.com/questions/42298919/setup-couchdb-2-0-cluster

I'd like to setup a cluster with CouchDB 2.0.0, but first I need a single host running well. I have tried MANY hostname configurations but they always result in:

** System NOT running to use fully qualified hostnames **

This is what I have tried, a full re-installation and reboot after each try.

-sname couchdb@thiscomputer.local
-sname couchdb@thiscomputer
-sname couchdb@192.168.178.59
-sname thiscomputer

-name couchdb@thiscomputer.local
-name couchdb@thiscomputer
-name couchdb@192.168.178.59
-name thiscomputer    

These all fail. So maybe I did something wrong in the server configuration?

hostname

pi@thiscomputer:~ $ sudo cat /etc/hostname 
thiscomputer

hosts

pi@thiscomputer:~ $ sudo cat /etc/hosts
127.0.0.1   thiscomputer    thiscomputer.local
::1         localhost ip6-localhost ip6-loopback
ff02::1     ip6-allnodes
ff02::2     ip6-allrouters

127.0.1.1   localhost