通过nfs3将hdfs挂载到本地

1.启动hdfs  

   start-dfs.sh (启动后使用jps查看进程是否启动)

2.执行hdfs portmap start和hdfs nfs3 start

   使用jps查看portmap和nfs3是否启动

3.执行mount -t nfs -o vers=3,proto=tcp,nolock 10.211.55.38:/ /hdfs

   挂载到本地目录

 

 

 

备注：

hadoop配置修改

 

1.core-site.xml

 

<property>

  <name>hadoop.proxyuser.root.groups</name>

  <value>*</value>

  <description>

         The 'nfsserver' user is allowed to proxy all members of the 'nfs-users1' and 

         'nfs-users2' groups. Set this to '*' to allow nfsserver user to proxy any group.

  </description>

</property>

 

<property>

  <name>hadoop.proxyuser.root.hosts</name>

  <value>*</value>

  <description>

         This is the host where the nfs gateway is running. Set this to '*' to allow

         requests from any hosts to be proxied.

  </description>

</property>

 

2.hdfs-site.xml

 

<property>

  <name>dfs.namenode.accesstime.precision</name>

  <value>3600000</value>

  <description>The access time for HDFS file is precise upto this value. 

    The default value is 1 hour. Setting a value of 0 disables

    access times for HDFS.

  </description>

</property>

 

 

 

<property>

 

<name>dfs.nfs3.dump.dir</name>

 

<value>/tmp/.hdfs-nfs</value>

 

 

3.log4j.properties

 

log4j.logger.org.apache.hadoop.hdfs.nfs=DEBUG

 

log4j.logger.org.apache.hadoop.oncrpc=DEBUG

 

 

 

 

转载于:https://www.cnblogs.com/qhg1/p/4329697.html