Hello,   I'm attempting to install a 3-node cluster using the Cloudera Manager automated install.  The installation fails at the final step, with the "Installation failed. Failed to receive heartbeat from agent." error.  Other solutions from this message board haven't worked for me.     Here is the log error:  [08/Dec/2015 16:06:48 +0000] 18303 MainThread agent ERROR Failed to connect to previous supervisor. Traceback (most recent call last): File "/usr/lib64/cmf/agent/src/cmf/agent.py", line 1636, in find_or_start_supervisor self.get_supervisor_process_info() File "/usr/lib64/cmf/agent/src/cmf/agent.py", line 1845, in get_supervisor_process_info self.identifier = self.supervisor_client.supervisor.getIdentification() File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__ return self.__send(self.__name, args) File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request verbose=self.__verbose File "/usr/lib64/cmf/agent/build/env/lib/python2.6/site-packages/supervisor-3.0-py2.6.egg/supervisor/xmlrpc.py", line 460, in request self.connection.request('POST', handler, request_body, self.headers) File "/usr/lib64/python2.6/httplib.py", line 914, in request self._send_request(method, url, body, headers) File "/usr/lib64/python2.6/httplib.py", line 951, in _send_request self.endheaders() File "/usr/lib64/python2.6/httplib.py", line 908, in endheaders self._send_output() File "/usr/lib64/python2.6/httplib.py", line 780, in _send_output self.send(msg) File "/usr/lib64/python2.6/httplib.py", line 739, in send self.connect() File "/usr/lib64/python2.6/httplib.py", line 720, in connect self.timeout) File "/usr/lib64/python2.6/socket.py", line 567, in create_connection raise error, msg error: [Errno 111] Connection refused   Here's my hostname info:  [root@Cloudera1 cloudera-scm-agent]# hostname cloudera1.icgsolutions.com [root@Cloudera1 cloudera-scm-agent]# hostname -f cloudera1.icgsolutions.com [root@Cloudera1 cloudera-scm-agent]# python -c 'import socket; print socket.getfqdn(), socket.gethostbyname(socket.getfqdn())' cloudera1.icgsolutions.com 192.168.0.86   [root@Cloudera1 cloudera-scm-agent]# hostname cloudera1.icgsolutions.com [root@Cloudera1 cloudera-scm-agent]# hostname -f cloudera1.icgsolutions.com [root@Cloudera1 cloudera-scm-agent]# python -c 'import socket; print socket.getfqdn(), socket.gethostbyname(socket.getfqdn())' cloudera1.icgsolutions.com 192.168.0.86       Here's my hosts file:  192.168.0.106 cloudera3.icgsolutions.com cloudera3 cloudera3.icgsolutions 192.168.0.86 cloudera1.icgsolutions.com cloudera1 cloudera1.icgsolutions 192.168.0.89 cloudera2.icgsolutions.com cloudera2 cloudera2.icgsolutions 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 127.0.0.1 localdomain localhost ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6     Any help would be appreciated.  ... View more