Problem with cluster installation with cloudera менеджер

I am installing Клоудера Манахер in my system (14.04/64b).

Конечный While installing at the step, before finish installation I got some ERRORs in validation схвати shown below,

errors in above page пашите,

1. ОШИБКА 1

   Индивид hosts решите their own hostnames correctly.

   Host localhost expected to have ямс localhost but решите (InetAddress.getLocalHost () .getHostName ()) itself to arul-персональный компьютер.

2. ОШИБКА 2

   The following errors were found while checking / и т.д. / hosts...

   • The hostname localhost is not the first матч for address 127.0.0.1 in / и т.д. / hosts on localhost. Instead, arul-персональный компьютер is the first матч. The FQDN must be the first entry in / и т.д. / hosts for the corresponding IP.
   • In / и т.д. / hosts on localhost, the IP 127.0.0.1 is present многообразный укради. В given IP should only be listed одиннадцать.

Заметьте (info)::

In my /etc/hosts,

127.0.0.1       localhost
127.0.0.1       arul-pc

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Заметьте 2 (my try)::

I tried to avoid arul-pc from /etc/hosts/ схвати,

127.0.0.1       localhost
#127.0.0.1      arul-pc

after saved and Run again, Ошибка 2 cleared, but Ошибка 1 changed схвати,

Индивид hosts решите their own hostnames correctly.

Host localhost failed to execute InetAddress.getLocalHost () with ошибка: arul-персональный компьютер: arul-персональный компьютер. This typically means that the hostname could not be решите.