amabri installation on centos failed stating that is process id is stale.?Please help on this guys

[#1]

[#2 · Accepted solution]

@saravanan gopalsamy

Looks like you have not configured the FQDN properly on your ambari host. Please check the /etc/hosts file to verify the hostname is correct and it matches the output of the following command:

# hostname -f

.

Prerequisite of Ambari Installation : (Set the Hostname😞 http://docs.hortonworks.com/HDPDocuments/Ambari-2.5.0.3/bk_ambari-installation/content/check_dns.htm...

- http://docs.hortonworks.com/HDPDocuments/Ambari-2.5.0.3/bk_ambari-installation/content/edit_the_host...

. Also can you please share the output of the file "/var/log/ambari-sever/ambari-server.out" here so that we can see if there are any additional issues?

[#3]

@saravanan gopalsamy

Please check your /etc/sysconfig/network file. What is the value of hostname? This should be fully qualified domain name. Then compare it with /etc/host file.

,

@saravanan gopalsamy

Ambari is not able to resolve reverse DNS. What is the value of your hostname in

/etc/sysconfig/network

It should be your fully qualified domain name. Is this what your /etc/host is also pointing to?

[#4]

Thankyou @mqureshi the /etc/hosts file was not updated properly