Changing hostname CDH5.7.X

[#1]

Does anyone have a working procedure for this? We've tried numerous methods found on searching, but none have worked..  Using Hadoop, zookeeper, accumulo, kafka, SOLR..

[#2]

are you trying to change the Cloudera manager server host name ? 

if so you can do it in 

/etc/cloudera-scm-agent/config.ini

change the Server_host  = (Hostname and ports of the Cloudera Manager Server and Agent and IP address of the Agent. ) 

[#3]

Thanks for the reply! and yes, we've hit all the config files, but accumulo is holding on to the original name somehow, someway, and still have yet to resolve it.