Apache httpd starting issue regarding ServerName directive

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After fresh installation of apache httpd 2.4, while starting the service I got this error:

# /etc/init.d/httpd restart
 * Starting web server httpd

  ... waiting httpd: apr_sockaddr_info_get() failed for server
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName


Even though my hostname in RHEL 6 is setup properly in /etc/sysconfig/network file:

# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=hs2.example.com 

To solve this issue, ServerName directive in the main httpd.conf need to be commented out and set as localhost: 
# vim /etc/httpd/conf/httpd.confServerName 

 ...
ServerName localhost
...
And now apache httpd restarting properly:

# /etc/init.d/httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]





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