MapR 5.1 is at End of Life (EOL) and no longer supported. Please see the latest documentation. This documentation is not being updated.

5.1 Reference
This section provides information about development content including MapR-FS and MapReduce development topics and reference content.
- Development Guide
- Reference Guide
  - MapR Control System
  - Hadoop Commands
  - HBase Shell for MapR-DB
    You can manage MapR-DB tables using HBase shell commands and additional HBase shell commands included in the MapR distribution of Hadoop.
  - YARN commands
    - yarn application
      The yarn application lists applications, or prints the status or kills the specified application.
    - yarn classpath
    - yarn daemonlog
    - yarn jar
    - yarn logs
    - yarn node
    - yarn queue
    - yarn rmadmin
    - yarn version
  - maprcli and REST API Syntax
  - Alarms Reference
  - Utilities
  - Default MapR Configurations
  - Configuration Files
  - MapR Environment
  - MapR Parameters
  - Best Practices
  - Language Support for MapR-DB Tables
  - Glossary
    This section contains defintions for commonly used terms in MapR Converged Data Platform environments.
  - Source Code for MapR Software
- Glossary
  This section contains defintions for commonly used terms in MapR Converged Data Platform environments.

yarn version

Prints the YARN version.

Syntax

yarn version

Output

$ yarn version
Hadoop 2.4.1-mapr-1408-SNAPSHOT
Subversion git@github.com:mapr/private-hadoop-common -r 6067f2d92ecb3202328799bc42a28ec7f6ffbff0
Compiled by root on 2014-08-27T00:00Z
Compiled with protoc 2.5.0
From source with checksum 932a326cc7e285d0a94adbc10e84e41
This command was run using /opt/mapr/hadoop/hadoop-2.4.1/share/hadoop/common/hadoop-common-2.4.1-mapr-1408-SNAPSHOT.jar