How to : Move the file from DataNode to NameNode

previous post - move file from Hadoop HDFS to remote system

solai In some case we would need to move the file which is available in DataNode but not in HDFS to HDFS cluster.

Same command also usefull when you have a file in any Hadoop installed system (which may/may not be part of Hadoop cluster) to any NameNode.

move file from DataNode system to Hadoop cluster

    bdalab@solai:/opt$ hadoop fs -fs NameNodeIP:9000/ -put /FileToMove /hadoopFolderName/

here,
NameNodeIP -> IP address of NameNode system
FileToMove -> is a file to be moved to HDFS

OR

    bdalab@solai:/opt$ hadoop fs -fs hdfs://10.0.18.269:9000/ -put /FileToMove /hadoopFolderName/

Next : Control NameNode data from DataNode