I may not have fully understood this question.
Ambari does not maintain a mapping between FQDN and IP address. It relies on the mapping to be available via external means (say /etc/hosts). Ambari will use the FQDN as host id/name while producing config values. Say HDFS or HBASE needs ZK quorum. Ambari will set the quorum using the hostnames (e.g. FQDN by default) it obtained from the agents running on the host. ________________________________ From: Vijaya Narayana Reddy Bhoomi Reddy <[email protected]> Sent: Friday, September 18, 2015 3:27 PM To: [email protected] Subject: Re: Component placement strategy - Ambari Thats true that we would provide FQDNs in Ambari. However, if the underlying machines' IP addresses change due to DHCP, how would FQDNs resolve to the new IPs? Or is it always recommended to have static IPs mapped to FQDNs and mentioned in the /etc/hosts on each machine in the cluster? Regards Vijay On 18 Sep 2015, at 18:17, Sumit Mohanty <[email protected]<mailto:[email protected]>> wrote: Ambari uses FQDN and also uses FQDN for configuration values as well. The contents of this e-mail are confidential and for the exclusive use of the intended recipient. If you receive this e-mail in error please delete it from your system immediately and notify us either by e-mail or telephone. You should not copy, forward or otherwise disclose the content of the e-mail. The views expressed in this communication may not necessarily be the view held by WHISHWORKS.
