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Hadoop yarn node list shows slaves as localhost.localdomain: #somenumber. communication exception exception

I have a connection exception exception from localhost.localdomain / 127.0.0.1 in localhost.localdomain: 55352 when I try to run the wordcount program. yarn nodelist gives

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

master / etc / hosts:

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

slave / etc / hosts:

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

I realized that the wizard is trying to connect to subordinates on localhost incorrectly. Please help me solve this. Any suggestion is welcome. Thank.

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Here is the code in which it NodeManagercreates NodeId:

private NodeId buildNodeId(InetSocketAddress connectAddress,
  String hostOverride) {
  if (hostOverride != null) {
    connectAddress = NetUtils.getConnectAddress(
      new InetSocketAddress(hostOverride, connectAddress.getPort()));
  }
  return NodeId.newInstance(
    connectAddress.getAddress().getCanonicalHostName(),
    connectAddress.getPort());
}

NodeManagertrying to get the canonical host name from the binding address, localhostwill be obtained at the specified address 127.0.0.1.

, localhost.localdomain 127.0.0.1, /etc/hosts :

  127.0.0.1  slave1 localhost.localdomain localhost


  127.0.0.1  slave2 localhost.localdomain localhost
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