Hello. I am concerned about the configuration in the host's settings. The customer has Cluster and it doesn't only use Hadoop. It is already being used for other purposes in developing the module. Actually, that Module based cluster has limited data processing. I installed a HDP for solving the problem. Currently, an unknown error has occurred (E.g. reject connection on zookeeper, connection lost). A suspected portion is the configuration for hosts. The host file is configured as a host with multiple IP's. :: 192.168.10.1 Node1 I (Private IP) :: 1.1.5.4 Node1 (Public IP) Is it correct for configuration? I have not changed the server's environment. Thank you ! ... View more