So the issue was very likely caused by the fact that reverse lookup for IP address is performed. We do not have PTR records and /etc/hosts contains info about current host only. I have added records for all hosts of the cluster to /etc/hosts and it works now. Please note that I have dfs.namenode.datanode.registration.ip-hostname-check set to false in custom hdfs-site.xml. ... View more

Ambari Metrics has its own master and region server. Metrics are stored in its own region server. You don't have to deploy hbase in Ambari managed cluster ... View more