MapR 5.2 is at End of Life (EOL) and no longer supported. Please see the latest documentation. This documentation is not being updated.

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5.2 Application Development
This section contains information related to application development for ecosystem components and MapR products including MapR-DB (binary and JSON), MapR-FS, and MapR Streams.
MapReduce and Applications
This section contains information associated with developing MapReduce programs or YARN applications.

MapR 5.2 Documentation

5.2 Application Development
This section contains information related to application development for ecosystem components and MapR products including MapR-DB (binary and JSON), MapR-FS, and MapR Streams.
- Connecting to the Cluster
  Application are often run on nodes that are not part of the MapR Cluster. There are many methods to connect to a MapR cluster; this section will briefly describe each option.
- MapR-FS and Applications
  The following sections provide information about accessing MapR-FS with C and Java applications.
- MapR-DB and Applications
  This section contains information on developing client applications for binary and JSON tables.
- MapR Streams and Applications
  MapR Streams brings integrated publish/subscribe messaging to the MapR Converged Data Platform.
- MapReduce and Applications
  This section contains information associated with developing MapReduce programs or YARN applications.
  - External Applications and Classpath
    Describes how to configure the class path for external applications.
  - Running MapReduce v1 Jobs
    Describes how to configure existing MapReduce v1 jobs to run in a MapR cluster.
  - Classpath Construction
    Describes how the MapReduce classpath is constructed.
  - Managing Third-Party Libraries
    Any third-party library that is required by a MapReduce program must be accessible to the data node that processes the job or application.
- Ecosystem Components
  The following sections provide information about each open source project that MapR supports.
- Maven and MapR
  This section discusses topics associated with Maven and MapR.
- Developer's Reference
  This section contains in-depth information for the developer.
- API Documentation
  This topic provides links to the locations of MapR's public APIs. These APIs are available for application development purposes.

MapReduce and Applications

This section contains information associated with developing MapReduce programs or YARN applications.

You can submit MapReduce v1 programs and YARN applications (MapReduce v2 and other applications that can run on YARN) to the same cluster.