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Getting "mount.nfs: system call failed" while installing HDFS

I am trying to set the HDFS filesystem according to the content in the url http://hadoop.apache.org/docs/r2.5.1/hadoop-project-dist/hadoop-hdfs/HdfsNfsGateway.html

But in the last mount statement, I get mount.nfs: mount system call failed

I got this output when running the following command:

mount -t nfs -o vers=3,proto=tcp,nolock,noacl <HDFS server name>:/ <existing local directory>

I am running haop in Pseudo Distributed mode.

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If you are using root to mount nfs on the client, for example, you need to add the following configuration in the core-site.xml file under $ HADOOP_HOME / etc / hadoop /



  <property>
    <name>hadoop.proxyuser.root.groups</name>
    <value>*</value>
  </property>
  <property>
    <name>hadoop.proxyuser.root.hosts</name>
    <value>*</value>
  </property>
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