Cannot start the rabbitmq server

[sarithaNeerukonda]

Hi ,

I am new to linux platform and Rabbitmq
I am using Centos6.
I have followed the steps given here to install http://www.rabbitmq.com/install-rpm.html
when I start the server I am getting this error.
Can't set short node name!\nPlease check your configuration\n.
Please help me out I am not getting what and where to change.

Thanks in advance....