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
  - Working with MapReduce and Applications
  - Working with MapR-FS
    - Chunk Size
    - Compression
    - Accessing MapR-FS with C Applications
    - Accessing MapR-FS in Java Applications
    - Including the MapR-FS JAR in Applications
      In general, applications should not bundle the MapR-FS JAR file. However, you can bundle the MapR-FS JAR file when an application meets certain requirements.
  - Working with Data
  - MapR Metrics and Job Performance
  - Maven Artifacts for MapR
  - Integrating MapR's GitHub and Maven Repositories With Your IDE
- Reference Guide
- Glossary
  This section contains defintions for commonly used terms in MapR Converged Data Platform environments.

Compression

MapR provides compression for files stored in the cluster. Compression is applied automatically to uncompressed files unless you turn compression off. The advantages of compression are:

Compressed data uses less bandwidth on the network than uncompressed data.
Compressed data uses less disk space.