title: Hadoop yarn node list shows slaves as localhost.localdomain:#somenumber. connection refuse exception
body: <p>I have got connection refuse exception from localhost.localdomain/127.0.0.1 to localhost.localdomain:55352 when trying to run wordcount program. 
  yarn node -list gives</p>
  
  <pre><code>hduser@localhost:/usr/local/hadoop/etc/hadoop$ yarn node -list
  15/05/27 07:23:54 INFO client.RMProxy: Connecting to ResourceManager at master/192.168.111.72:8040
  Total Nodes:2
           Node-Id         Node-State Node-Http-Address   Number-of-Running-Containers
  localhost.localdomain:32991         RUNNING localhost.localdomain:8042                             0
  localhost.localdomain:55352         RUNNING localhost.localdomain:8042                             0
  </code></pre>
  
  <p>master /etc/hosts:</p>
  
  <pre><code>127.0.0.1    localhost localhost.localdomain localhost4 localhost4.localdomain4
  #127.0.1.1    ubuntu-Standard-PC-i440FX-PIIX-1996
  192.168.111.72  master
  192.168.111.65  slave1
  192.168.111.66  slave2
  
  # 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
  </code></pre>
  
  <p>slave /etc/hosts:</p>
  
  <pre><code>127.0.0.1       localhost.localdomain localhost
  #127.0.1.1      ubuntu-Standard-PC-i440FX-PIIX-1996
  192.168.111.72  master
  #192.168.111.65  slave1
  #192.168.111.66  slave2
  
  # 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
  </code></pre>
  
  <p>What I understood is master is wrongly trying to connect to slaves on localhost. Please help me resolve this. Any suggestion is appreciated. Thank you. </p>