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

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You can submit MapReduce v1 jobs and YARN applications (MapReduce v2 and other applications that run on YARN) to the same cluster.
A job or an application can be submitted to the cluster in the following ways:

  • The hadoop jar command submits a MapReduce v1 job or MapReduce v2 application.
  • The yarn jar command submits an application.
  • An external application submits a MapReduce v1 job or an application.
  • An ecosystem component generates and submits an application or a MapReduce v1 job.
  • The hadoop job command submits a MapReduce v1 job or MapReduce v2 application.
  • The mapred job command submits a MapReduce v2 application.

When you submit a MapReduce v1 job or MapReduce v2 application to the cluster, it is important to be aware of the MapReduce mode that will be used. For more information, see Managing the MapReduce Mode.

When you submit a non-MapReduce job or application to the cluster, such a Spark application, the application is automatically processed using yarn mode (ResourceManager, NodeManager, and MapReduce ApplicationMaster).

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The method to submit Hadoop commands from a Windows or Mac client is different, For details, see Running Hadoop Commands on a Mac and Windows Client.
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