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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About MapR 5.2
This site contains the main documentation for Version 5.2 of the MapR Converged Data Platform, including installation, configuration, administration, and reference information.
Version 5.2.1 Release Notes
5.2.1 is the latest maintenance release of the MapR Converged Data Platform 5.2. These notes list the differences between 5.2.1 and 5.2.0. Use these when you install 5.2.1 or upgrade to 5.2.1.
What's New in Version 5.2.1
Provides a summary of new functionality in the 5.2.1 maintenance release.

MapR 5.2 Documentation

About MapR 5.2
This site contains the main documentation for Version 5.2 of the MapR Converged Data Platform, including installation, configuration, administration, and reference information.
- MapR System Overview
  MapR is a complete enterprise-grade distribution for Apache Hadoop. The MapR Converged Data Platform has been engineered to improve Hadoop’s reliability, performance, and ease of use.
- MapR Sandbox for Hadoop
  The MapR Sandbox for Hadoop is a fully-functional single-node cluster that gently introduces business analysts, current and aspiring Hadoop developers, and administrators (database, system, and Hadoop) to the big data promises of Hadoop and its ecosystem.
- Version 5.2.2 Release Notes
  5.2.2 is the latest maintenance release of the MapR Converged Data Platform 5.2. These notes list the differences between 5.2.2 and 5.2.0. Use these when you install 5.2.2 or upgrade to 5.2.2.
- Version 5.2.1 Release Notes
  5.2.1 is the latest maintenance release of the MapR Converged Data Platform 5.2. These notes list the differences between 5.2.1 and 5.2.0. Use these when you install 5.2.1 or upgrade to 5.2.1.
  - What's New in Version 5.2.1
    Provides a summary of new functionality in the 5.2.1 maintenance release.
  - Packages and Dependencies for MapR 5.2.1
    Details about packages and dependencies for the MapR Converged Data Platform software and Hadoop ecosystem components for the MapR 5.2.1 release.
  - Installation and Upgrade Notes
    Read this before installing or upgrading to Version 5.2.2, 5.2.1, or 5.2.0.
  - List of YARN Enhancements in Version 5.2.1
    Bug fixes from various Hadoop versions backported into 2.7.0 and used in MapR Converged Data Platform 5.2.1
  - Operational Changes for 5.2.1
    Summary of functional changes new to Version 5.2.1
  - Known Issues
  - Issues Resolved in 5.2.1
- Version 5.2 Release Notes
  These release notes contain information about Version 5.2 of the MapR Converged Data Platform.

What's New in Version 5.2.1

Provides a summary of new functionality in the 5.2.1 maintenance release.

Version 5.2.1 supports a larger set of operating system versions. See Operating System Support Matrix.

For fixes included in MapR 5.2.1, see Issues Resolved in 5.2.1.

Enhancements to Disk Space Balancer

Since the initial release of Version 5.2.0, the disk space balancer tool has been improved to distribute containers from highly utilized storage pools on one node in a cluster to less utilized storage pools on other nodes in the same cluster by first classifying storage pools into different bins (based on their utilization level) and then moving containers from storage pools in the highest utilized bin (the source SP) to suitable storage pools in the the lowest utilized bin in two phases. These enhancements are present in Version 5.2.0 as well.

For more information, see Disk Space Balancer.

Other New Functionality

New MapR Expansion Packs (MEPs) and a new installer were introduced at the same time as MapR 5.2.1. To learn more about their features, see: