PRVF-0002 Could not retrieve local nodename

Oracle Database: PRVF-0002 Could not retrieve local nodename

Cause: Unable to determine local host name using Java network functions. 

Action: Ensure hostname is defined correctly using the 'hostname' command.

Change your hosts file as following , restart your network services and try installer again 

[root@ora-gold1 ~]# cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.0.27 ora-gold1 ora-gold1

ORA-21561: OID generation failed

[oracle@ora-golden2 admin]$ sqlplus 'sys/vihaan@stdy as sysdba'

SQL*Plus: Release 12.1.0.2.0 Production on Sun Oct 5 12:49:22 2014

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

ERROR:

ORA-21561: OID generation failed

I have no idea why I am getting above error ..

on Oracle linux 6.5 , work around is restart network services and try again 

as a root ......

[root@ora-golden2 ~]# service network restart

Shutting down interface eth0:  Device state: 3 (disconnected)

                                                           [  OK  ]

Shutting down loopback interface:                          [  OK  ]

Bringing up loopback interface:                            [  OK  ]

Bringing up interface eth0:  Active connection state: activating

Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/3

state: activated

Connection activated

                                                           [  OK  ]

[root@ora-golden2 ~]# su - oracle

[oracle@ora-golden2 ~]$ sqlplus 'sys/vihaan@stdy as sysdba'

SQL*Plus: Release 12.1.0.2.0 Production on Sun Oct 5 12:49:49 2014

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Connected to an idle instance.