Work with Hadoop and HDFS file system

Work with Hadoop and HDFS file system

cd $HADOOP_HOME
Create a directory on the hdfs file system (not your local OS file system)
hdfs dfs -mkdir /mydir
There is LICENSE.txt in $HADOOP_HOME directory, copy it into hdfs file system /mydir
hdfs dfs -put LICENSE.txt /mydir
You can check the existence of the LICENSE.txt in hdfs file system directory /mydir
hdfs dfs -ls /mydir
After done playing, clean it up:
hdfs dfs -rm /mydir/*
hdfs dfs -rmdir /mydir
You can show the full list of hdfs command by
hdfs dfs -help

Hadoop hdfs command guide:

Last modified 1yr ago