"hdfs: command not found" when trying to execute command "hdfs namenode -format" during hadoop installation

Complete error statement :

No command 'hdfs' found, did you mean: Command 'hfs' from package 'hfsutils-tcltk' (universe) Command 'hdfls' from package 'hdf4-tools' (universe) hdfs: command not found

4 Answers

There may be something wrong with your HDFS installation, try giving the full path to hdfs in your command.

/path/to/dir/hdfs namenode -format

the path depends on your OS and hadoop distribution you're using etc. Use locate or find for it.

If it works with full path, its probably a PATH issue, export the path in your .bashrc and then try.

Cheers.

Check if you have added your hadoop executables to PATH properly.

add the below given export commands in .bashrc if not:

export HADOOP_INSTALL=/path/where/hadoop/is/installed

export PATH=$PATH:$HADOOP_INSTALL/bin

export PATH=$PATH:$HADOOP_INSTALL/sbin

export HADOOP_MAPRED_HOME=$HADOOP_INSTALL

export HADOOP_COMMON_HOME=$HADOOP_INSTALL

export HADOOP_HDFS_HOME=$HADOOP_INSTALL

export YARN_HOME=$HADOOP_INSTALL

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native

export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib"

Finally source the bashrc file

try with bin/hdfs instead of hdfs. It worked for me.

I hope this error is resolved by now, but this error occurs because the hdfs path may not be set, so first check hdfs path by using this command,

which hdfs

if path is not set, then check the environment variable in ~/.bash_profile if it PATH is written like this,

PATH=$PATH:$HOME/bin

change it to this PATH=$PATH:$HADOOP_HOME/bin

source ~/.bash_profile

then check the your hdfs path, if it is set by using which command(as shown above) Then your problem might get resolved. Hope this helps!