hadoop/hadoop-hdds/docs/content/tools/_index.md

---
title: "Tools"
date: "2017-10-10"
summary: Ozone supports a set of tools that are handy for developers.Here is a quick list of command line tools.
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   main:
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---

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Ozone has a set of command line tools that can be used to manage ozone.

All these commands are invoked via the ```ozone``` script.

Daemon commands:

   * **scm** -  Storage Container Manager service, via daemon can be started
   or stopped.
   * **om** -   Ozone Manager, via daemon command can be started or stopped.
   * **datanode** - Via daemon command, the HDDS data nodes can be started or
   stopped.
   * **s3g** -

Client commands:

   * **sh** -  Primary command line interface for ozone to manage volumes/buckets/keys.
   * **fs** - Runs a command on ozone file system (similar to `hdfs dfs`)
   * **version** - Prints the version of Ozone and HDDS.


Admin commands:

   * **classpath** - Prints the class path needed to get the hadoop jar and the
    required libraries.
   * **dtutil**    - Operations related to delegation tokens
   * **envvars** - Display computed Hadoop environment variables.
   * **getconf** -  Reads ozone config values from configuration.
   * **jmxget**  - Get JMX exported values from NameNode or DataNode.
   * **scmcli** -  Developer only, Command Line Interface for the Storage
   Container Manager.
   * **genconf** -  Generate minimally required ozone configs and output to
   ozone-site.xml.

Test tools:

   * **freon** -  Runs the ozone load generator.
   * **genesis**  - Developer Only, Ozone micro-benchmark application.

 For more information see the following subpages: