I'm also getting
Failed to register with cluster master reason: failed method=POST path=/services/cluster/master/peers/?output_mode=json master=splunkdeployer:8089 rv=0 gotConnectionError=1 gotUnexpectedStatusCode=0 actual_response_code=502 expected_response_code=2xx status_line="Error connecting: Connection refused" socket_error="Connection refused" remote_error= [ event=addPeer status=retrying AddPeerRequest: { _id= active_bundle_id=4B4EFCBBAA14C9AD694D9BE6FAB82C22 add_type=Initial-Add base_generation_id=0 batch_serialno=1 batch_size=1 forwarderdata_rcv_port=9997 forwarderdata_use_ssl=0 last_complete_generation_id=0 latest_bundle_id=4B4EFCBBAA14C9AD694D9BE6FAB82C22 mgmt_port=8089 name=F645968A-05ED-411F-8F5E-C467EED3B184 register_forwarder_address= register_replication_address= register_search_address= replication_port=9887 replication_use_ssl=0 replications= server_name=site1indexer1 site=site1 splunk_version=6.6.0 splunkd_build_number=1c4f3bbe1aea status=Up } ].
nmap shows ports open on all relevant machines,I'm also getting
Failed to register with cluster master reason: failed method=POST path=/services/cluster/master/peers/?output_mode=json master=splunkdeployer:8089 rv=0 gotConnectionError=1 gotUnexpectedStatusCode=0 actual_response_code=502 expected_response_code=2xx status_line="Error connecting: Connection refused" socket_error="Connection refused" remote_error= [ event=addPeer status=retrying AddPeerRequest: { _id= active_bundle_id=4B4EFCBBAA14C9AD694D9BE6FAB82C22 add_type=Initial-Add base_generation_id=0 batch_serialno=1 batch_size=1 forwarderdata_rcv_port=9997 forwarderdata_use_ssl=0 last_complete_generation_id=0 latest_bundle_id=4B4EFCBBAA14C9AD694D9BE6FAB82C22 mgmt_port=8089 name=F645968A-05ED-411F-8F5E-C467EED3B184 register_forwarder_address= register_replication_address= register_search_address= replication_port=9887 replication_use_ssl=0 replications= server_name=site1indexer1 site=site1 splunk_version=6.6.0 splunkd_build_number=1c4f3bbe1aea status=Up } ].
This is on a new install, so assumed it was a configuration issue, however testing using nmap shows the ports are open on relevant boxes.
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