In SolrCloud mode, I have noticed that in the Cloud Graph section of the Solr Admin UI, the nodes are represented by their IP addresses.
Is there a way to change these IP addresses to the hostname of the server?
Solr will determine the address of the server that is addressable from remote servers and assign it to the node. This value can be explicitly set to a hostname or IP address with the 'host' system property.
For instance, in LucidWorks Search you can edit master.conf file under [LWE_HOME]/conf and add the following property to lwecore.jvm.params