Hello,   I'm doing a basic cluster installation using Cloudera Standard 4 on CentOS 6.3 64 and it does not work...  Here is what I'm doing:   1. I run ./cloudera-manager-installer.bin and go to http://132.207.67.11:7180/ to continue the installation. 2. Then I follow the wizard and add the host 132.207.67.11 to the cluster installation. 3. The cluster installation on this host is successful but I find it strange that the IP is changed to 127.0.0.1. 4. But anyway, I continue and install the parcels. 5. And then at the hosts inspection I get this:   Cluster Installation Inspect hosts for correctness   Run Again Validations   Inspector failed on the following hosts...  homer.larim.polymtl.ca: IOException thrown while collecting data from host: Connection refused Inspector ran on 0 hosts.   The inspector failed to run on all hosts.   0 hosts are running CDH3 and 1 hosts are running CDH4.   All checked hosts are running the same version of components.   All managed hosts have consistent versions of Java.   All checked Cloudera Management Daemons versions are consistent with the server.   All checked Cloudera Management Agents versions are consistent with the server.   And from the log file cloudera-scm-agent.out :   [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        INFO     SCM Agent Version: 4.7.3 [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        INFO     Using directory: /var/run/cloudera-scm-agent [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        INFO     Using supervisor binary path: /usr/lib64/cmf/agent/src/cmf/../../build/env/bin/supervisord [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        WARNING  Agent is running on 127.0.0.1 (localhost). This is a misconfiguration for multi-machine clusters. Check your hostname settings. [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        INFO     Adding env vars that start with CMF_AGENT_ [06/Nov/2013 09:45:45 +0000] 21416 MainThread agent        INFO     Logging to /var/log/cloudera-scm-agent/cloudera-scm-agent.log   Why is it using 127.0.0.1.  I'm always using FQDN name and the name resolution is made by DNS.  Just the be sure, here is the content of my hosts file:   127.0.0.1       localhost.localdomain   localhost ::1     homer.larim.polymtl.ca  homer   localhost6.localdomain6 localhost6 132.207.67.11   homer.larim.polymtl.ca  homer   Anyway, I'm a bit baffled by the problem since I'm doing a vanilla installation with all the default value.  Can anybody help me?   Thanks a lot...   ... View more