This is documentation for MapR Version 5.0. You can also refer to MapR documentation for the latest release.

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All YARN commands are invoked by the /usr/bin/yarn script.

Usage: yarn [--config confdir] [COMMAND] [COMMAND_OPTIONS]

COMMAND_OPTION

Description

--config confdir

Overrides the default Configuration directory. Default is ${HADOOP_HOME}/conf.

COMMAND

Commands

COMMAND_OPTIONS

Command options

Commands

The following yarn commands may be run on MapR distribution of Apache Hadoop:

Command

Description

applicationLists applications, or prints the status or kills the specified application. 
classpathPrints the class path needed to get the Hadoop jar and the required libraries
daemonlogGets and sets the log level for each daemon
jarRuns jar file
logsDumps container logs

node

Prints node report(s)
queuePrints queue information
rmadminPerforms administrative tasks for Resource Manager
versionPrint the version

 

 The following yarn commands are not supported on the MapR distribution of Apache Hadoop:

  • yarn applicationattempt
  • yarn cluster
  • yarn container
  • yarn nodemanager
  • yarn proxyserver
  • yarn resourcemanager
  • yarn sharedcachemanager
  • yarn scmadmin
  • yarn timelineserver

You can use the maprcli node services command or the MCS to start the services. For more information, see Starting, Stopping, and Restarting Services.

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