+Alejandro In theory, you can stop ambari-server, modify all occurrences of the hostname and that should be it. There is not first class support for it.
Alejandro, did you look at the possibility of manually changing all host names to rename a host (https://issues.apache.org/jira/browse/AMBARI-10167) -Sumit ________________________________________ From: Frank Eisenhauer <[email protected]> Sent: Saturday, April 18, 2015 12:31 AM To: Ambari User Subject: Change hostname on running cluster Hi All, we have a running hadoop cluster where we unfortunately have a hostname in uppercase, e.g. SRV-HADOOP01.BIGDATA.LOCAL. As of Ambari 1.7 we are experiencing a lot of side effects which are presumably caused by the hostnames in uppercase. I would like to rename the particular hosts(e.g. srv-hadoop01.bigdata.local), so that there are only hosts with lowercase names in the cluster. Is it possible to change the hostname? I came across a few blogs, but in general renaming hostnames seems not to be recommended. Has anyone performed a hostname change? Many thanks in advance.
