Hi, Please help me to address below issue.. after agent installation , while starting cloudera manager agent on second VM machine I am getting following error ..   ----------------- logs is as shown below -------------- Starting cloudera-scm-agent: [FAILED] END (1) agent logs: BEGIN tail -n 50 /var/log/cloudera-scm-agent//cloudera-scm-agent.out | sed 's/^/>>/' >> [--orphan_process_directory_refresh_interval ORPHAN_PROCESS_DIRECTORY_REFRESH_INTERVAL] >> [--agent_httpd_port AGENT_HTTPD_PORT] --package_dir >> PACKAGE_DIR [--parcel_dir PARCEL_DIR] >> [--supervisord_path SUPERVISORD_PATH] >> [--supervisord_httpd_port SUPERVISORD_HTTPD_PORT] >> [--standalone STANDALONE] [--master MASTER] >> [--environment ENVIRONMENT] [--host_id HOST_ID] >> [--disable_supervisord_events] --hostname HOSTNAME >> --ip_address IP_ADDRESS >> [--reported_hostname REPORTED_HOSTNAME] [--use_tls] >> [--client_key_file CLIENT_KEY_FILE] >> [--client_cert_file CLIENT_CERT_FILE] >> [--verify_cert_file VERIFY_CERT_FILE] >> [--verify_cert_dir VERIFY_CERT_DIR] >> [--client_keypw_file CLIENT_KEYPW_FILE] >> [--client_keypw_cmd CLIENT_KEYPW_CMD] >> [--max_cert_depth MAX_CERT_DEPTH] [--logfile LOGFILE] >> [--logdir LOGDIR] [--optional_token] [--clear_agent_dir] >> [--sudo_command SUDO_COMMAND] [--pidfile PIDFILE] >> [--comm_name COMM_NAME] >>cmf-agent: error: argument --hostname is required >>[26/Jun/2018 00:17:43 +0000] 11328 MainThread agent INFO SCM Agent Version: 5.13.0 >>[26/Jun/2018 00:17:43 +0000] 11328 MainThread agent ERROR Could not determine hostname or ip address; proceeding. >>Traceback (most recent call last): >> File "/usr/lib64/cmf/agent/build/env/lib/python2.6/site-packages/cmf-5.13.0-py2.6.egg/cmf/agent.py", line 2686, in parse_arguments >> ip_address = socket.gethostbyname(fqdn) >>gaierror: [Errno -3] Temporary failure in name resolution >>usage: cmf-agent [-h] [--agent_dir AGENT_DIR] [--daemon] [--lib_dir LIB_DIR] >> [--orphan_process_directory_staleness_threshold ORPHAN_PROCESS_DIRECTORY_STALENESS_THRESHOLD] >> [--orphan_process_directory_refresh_interval ORPHAN_PROCESS_DIRECTORY_REFRESH_INTERVAL] >> [--agent_httpd_port AGENT_HTTPD_PORT] --package_dir >> PACKAGE_DIR [--parcel_dir PARCEL_DIR] >> [--supervisord_path SUPERVISORD_PATH] >> [--supervisord_httpd_port SUPERVISORD_HTTPD_PORT] >> [--standalone STANDALONE] [--master MASTER] >> [--environment ENVIRONMENT] [--host_id HOST_ID] >> [--disable_supervisord_events] --hostname HOSTNAME >> --ip_address IP_ADDRESS >> [--reported_hostname REPORTED_HOSTNAME] [--use_tls] >> [--client_key_file CLIENT_KEY_FILE] >> [--client_cert_file CLIENT_CERT_FILE] >> [--verify_cert_file VERIFY_CERT_FILE] >> [--verify_cert_dir VERIFY_CERT_DIR] >> [--client_keypw_file CLIENT_KEYPW_FILE] >> [--client_keypw_cmd CLIENT_KEYPW_CMD] >> [--max_cert_depth MAX_CERT_DEPTH] [--logfile LOGFILE] >> [--logdir LOGDIR] [--optional_token] [--clear_agent_dir] >> [--sudo_command SUDO_COMMAND] [--pidfile PIDFILE] >> [--comm_name COMM_NAME] >>cmf-agent: error: argument --hostname is required >> [--orphan_process_directory_refresh_interval ORPHAN_PROCESS_DIRECTORY_REFRESH_INTERVAL] >> [--agent_httpd_port AGENT_HTTPD_PORT] --package_dir >> PACKAGE_DIR [--parcel_dir PARCEL_DIR] >> [--supervisord_path SUPERVISORD_PATH] >> [--supervisord_httpd_port SUPERVISORD_HTTPD_PORT] >> [--standalone STANDALONE] [--master MASTER] >> [--environment ENVIRONMENT] [--host_id HOST_ID] >> [--disable_supervisord_events] --hostname HOSTNAME >> --ip_address IP_ADDRESS >> [--reported_hostname REPORTED_HOSTNAME] [--use_tls] >> [--client_key_file CLIENT_KEY_FILE] >> [--client_cert_file CLIENT_CERT_FILE] >> [--verify_cert_file VERIFY_CERT_FILE] >> [--verify_cert_dir VERIFY_CERT_DIR] >> [--client_keypw_file CLIENT_KEYPW_FILE] >> [--client_keypw_cmd CLIENT_KEYPW_CMD] >> [--max_cert_depth MAX_CERT_DEPTH] [--logfile LOGFILE] >> [--logdir LOGDIR] [--optional_token] [--clear_agent_dir] >> [--sudo_command SUDO_COMMAND] [--pidfile PIDFILE] >> [--comm_name COMM_NAME] >>cmf-agent: error: argument --hostname is required >>[26/Jun/2018 00:17:43 +0000] 11328 MainThread agent INFO SCM Agent Version: 5.13.0 >>[26/Jun/2018 00:17:43 +0000] 11328 MainThread agent ERROR Could not determine hostname or ip address; proceeding. >>Traceback (most recent call last): >> File "/usr/lib64/cmf/agent/build/env/lib/python2.6/site-packages/cmf-5.13.0-py2.6.egg/cmf/agent.py", line 2686, in parse_arguments >> ip_address = socket.gethostbyname(fqdn) >>gaierror: [Errno -3] Temporary failure in name resolution >>usage: cmf-agent [-h] [--agent_dir AGENT_DIR] [--daemon] [--lib_dir LIB_DIR] >> [--orphan_process_directory_staleness_threshold ORPHAN_PROCESS_DIRECTORY_STALENESS_THRESHOLD] >> [--orphan_process_directory_refresh_interval ORPHAN_PROCESS_DIRECTORY_REFRESH_INTERVAL] >> [--agent_httpd_port AGENT_HTTPD_PORT] --package_dir >> PACKAGE_DIR [--parcel_dir PARCEL_DIR] >> [--supervisord_path SUPERVISORD_PATH] >> [--supervisord_httpd_port SUPERVISORD_HTTPD_PORT] >> [--standalone STANDALONE] [--master MASTER] >> [--environment ENVIRONMENT] [--host_id HOST_ID] >> [--disable_supervisord_events] --hostname HOSTNAME >> --ip_address IP_ADDRESS >> [--reported_hostname REPORTED_HOSTNAME] [--use_tls] >> [--client_key_file CLIENT_KEY_FILE] >> [--client_cert_file CLIENT_CERT_FILE] >> [--verify_cert_file VERIFY_CERT_FILE] >> [--verify_cert_dir VERIFY_CERT_DIR] >> [--client_keypw_file CLIENT_KEYPW_FILE] >> [--client_keypw_cmd CLIENT_KEYPW_CMD] >> [--max_cert_depth MAX_CERT_DEPTH] [--logfile LOGFILE] >> [--logdir LOGDIR] [--optional_token] [--clear_agent_dir] >> [--sudo_command SUDO_COMMAND] [--pidfile PIDFILE] >> [--comm_name COMM_NAME] >>cmf-agent: error: argument --hostname is required END (0) BEGIN tail -n 50 /var/log/cloudera-scm-agent//cloudera-scm-agent.log | sed 's/^/>>/' tail: cannot open `/var/log/cloudera-scm-agent//cloudera-scm-agent.log' for reading: No such file or directory tail: cannot open `/var/log/cloudera-scm-agent//cloudera-scm-agent.log' for reading: No such file or directory END (0) ... 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