apache - Hadoop filesystem copy - namenode vs datanode -

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i need copy file filesystem hdfs, , below configuration in hdfs-site.xml. how should use "hadooop fs" command copy file @ /home/text.txt hdfs? should copy namenode or datanode? 

 <configuration> <property>    <name>dfs.replication</name>    <value>1</value> </property>  <property>    <name>dfs.namenode.name.dir</name>    <value>file:/usr/local/hadoop_store/hdfs/namenode</value>  </property>  <property>    <name>dfs.datanode.data.dir</name>    <value>file:/usr/local/hadoop_store/hdfs/datanode</value>  </property> </configuration>

what hadoop version use? directory dfs.namenode.name.dir used storage meta data, , directory dfs.datanode.data.dir used storage real data(e.g. user data).

if want upload file hdfs, need not care copy namenode or datanode. because hdfs it. , data storage on datanode.

you can use commond bin/hadoop fs -mkdir /input , bin/hadoop fs copyfromlocal /home/text.txt /input. first commond create directory "input" on hdfs, , second copy file hdfs.


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