Hello @kotni,    The Stack trace says the connection is refused on the NameNode port(9870)dfs.namenode.http-address, hence make sure the required ports are configured/opened in both the source and Destination clusters on performing Distcp.   - Here is the list of ports used by CDH components and DistCP - https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/cdh_ports.html - https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/install_ports_distcp.html   Post that, Try out the below: - Examples of DistCP syntaxes to try out https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/cdh_admin_distcp_data_cluster_migrate.html#distcp_examples   Let us know how it goes. - Vaishaak   ... View more