question Re: ambari-agent connection refused after host reboot in Support Questions

question Re: ambari-agent connection refused after host reboot in Support Questions https://community.cloudera.com/t5/Support-Questions/ambari-agent-connection-refused-after-host-reboot/m-p/241214#M203018 <A rel="noopener noreferrer noopener noreferrer noopener noreferrer noopener noreferrer noopener noreferrer noopener noreferrer" href="http://xn--adrin%20gil-n7a/" target="_blank">@Adrián Gil</A> You succeeded but encountering heartbeat lost because your /etc/hosts entry is wrong 🙂 I really can't understand how you can connect 🙂 The below entry is wrong and shouldn't resolve that somehow explains why you had difficulty in running the host_names_changes.json<PRE>bigdata@bigdata:~$ sudo cat /etc/hosts 10.61.2.10              bigdatapruebas.es bigdata.adurizenergia.es bigdata.es bigdata </PRE>Should be the /etc/host entry should be exactly the output of <PRE>$ hostname -f bigdatapruebas.es</PRE>So your /etc/hosts should look like below <PRE>$ sudo cat /etc/hosts 10.61.2.10       bigdatapruebas.es </PRE>But if you had an FQDN like bigdata.endesa.es the entry could be IP FQDN ALIAS<PRE>$ sudo cat /etc/hosts IP FQDN ALIAS ------------------------------------------------ 10.61.2.10       bigdata.endesa.es      bigdata</PRE>With the above entry in the /etc/hosts, you can access ambari successfully in 2 ways <PRE><A href="http://bigdata.endesa.es:8080" target="_blank">http://bigdata.endesa.es:8080</A></PRE>and<PRE><A href="http://bigdata:8080" target="_blank">http://bigdata:8080</A></PRE> Please do the necessary changes and revert Tue, 28 May 2019 01:57:53 GMT Shelton 2019-05-28T01:57:53Z