October 2018
Beginner
220 pages
5h 33m
English
Content preview from Apache Hadoop 3 Quick Start Guide
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Working with HDFS user commands
HDFS provides a command-line interface for users as well as administrators. They can perform different actions pertaining to the filesystem or to play with clusters. Administrative commands are covered in Chapter 6, Monitoring and Administration of a Hadoop Cluster, targeted for administration. In this section, we will go over HDFS user commands:
|
Command |
Parameters |
Description |
Important Parameters |
|
classpath |
--jar <file> |
Prints the classpath for Hadoop as a JAR file. |
|
|
dfs |
<command> <params> |
Runs filesystem commands. Please refer to the next section for specific commands. |
|
|
envvars |
|
Displays Hadoop environment variables. |
|
|
fetchdt |
<token-file> |
Fetches the delegation ... |
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