log hostname in metrics.log

[datacenter]

In a distributed deployment on the indexer in metrics.log there are logged 2 fields: sourceHost and sourceIp. In my setup they are identical. The IP is logged in both fields. What do I have to configure to log the hostname as well (on the universal forwarders I think)?

[datacenter]

[tcpout: _9700]
server = :9700

[tcpout-server://:9700]

[tcpout]
defaultGroup = _9700
disabled = false

[datacenter]

Yes serverName is set to hostname in server.conf. We although set the hostname in inputs.conf (host = ).

[MarioM]

what is in the UF outputs.conf?

[MarioM]

Have you tried to modify the following in $SPLUNK_HOME/etc/system/local/server.conf :

[general]
serverName = <ascii string>