What is the standard way to create files in your hdfs file-system?

0 votes

I learned that I have to configure the NameNode and DataNode dir in hdfs-site.xml.

So that's my hdfs-site.xml configuration on the NameNode:

<configuration>
 <property>
    <name>dfs.replication</name> 
    <value>3</value>
  </property>

 <property>
    <name>dfs.namenode.name.dir</name> 
    <value>file://usr/local/hadoop-2.6.0/hadoop_data/hdfs/namenode</value>
  </property>

 <property>
    <name>dfs.block.size</name> 
    <value>134217728</value>
  </property>
</configuration>

I did almost the same on my DataNode and changed dfs.namenode to dfs.datanode.

Then I formatted the filesystem via

hadoop namenode -format

Everything seems to be finished without an error. Then I wanted to create a directory in my HDFS filesystem by using:

hdfs dfs -mkdir test

And I got an error:

mkdir: `test': No such file or directory

What did I miss or what's the common process from formatting to creating files/directories with HDFS?

Sep 22, 2018 in Big Data Hadoop by Neha
• 6,140 points
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1 answer to this question.

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0 votes

Well, it's so easy.

Just enter the below mentioned commands:

hdfs dfs -mkdir /test

Then,
hdfs dfs -put myFile /test/myFile
answered Sep 22, 2018 by Frankie
• 9,570 points

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