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 Installation
This section contains information on installing and upgrading MapR. It also contains information on how to migrate data and applications from an Apache Hadoop cluster to a MapR cluster.
Installing MapR or MEP Components
Describes how to install MapR software and MapR Expansion Pack (MEP) components with the MapR Installer or without the MapR Installer.
Preparing each Node
Identifies major factors in preparing each node in your cluster.

MapR 5.2 Documentation

5.2 Installation
This section contains information on installing and upgrading MapR. It also contains information on how to migrate data and applications from an Apache Hadoop cluster to a MapR cluster.
- Installing MapR or MEP Components
  Describes how to install MapR software and MapR Expansion Pack (MEP) components with the MapR Installer or without the MapR Installer.
  - MapR Repositories and Packages
    Describes the repositories for MapR software and Hadoop Ecosystem tools.
  - Planning the Cluster
    Describes information and factors used in planning your cluster.
  - Preparing each Node
    Identifies major factors in preparing each node in your cluster.
    - CPU and Operating System
      This section describes how to check that your processor and operating system are supported by MapR software.
    - Memory and Disk Space
      This section outlines required and recommended memory, storage, and disk capacities.
    - Connectivity
      This section outlines and troubleshoots connectivity requirements.
    - Software
      In order to run MapR software and Hadoop, you must install certain software on your node.
    - Infrastructure
      This section identifies certain software and settings that contribute to your node's infrastructure.
  - Installing with the MapR Installer
    The MapR Installer automates the process of installing MapR software and offers you a variety of options to complete the installation.
  - Installing without the MapR Installer
    Describes how to install MapR software and ecosystem components manually.
  - Configuring the Cluster
    This section contains information on configuring MapR clusters.
  - Setting Up the Client
    Describes how to set up and use interfaces to a MapR cluster from a client computer.
- Installing MapR-XD
  Describes how to install MapR-XD software with or without the MapR Installer.
- Installing MapR in the Cloud
  Provides an overview of MapR cloud installer capabilities.
- Upgrading MapR or MEP Components
  Depending on your current configuration, you may choose to upgrade the MapR version (MapR Core), ecosystem components, clients, or MapR Monitoring components.
- Migrating to MapR
  Provides instructions for migrating business-critical data and applications from an Apache Hadoop cluster to a MapR cluster.
- Applying a Patch
  You can apply a patch by using the MapR Installer, by using the command line (a manual process), or by using a MapR Installer Stanza.

Preparing each Node

Identifies major factors in preparing each node in your cluster.

Each node contributes to the cluster, so each must be able to run MapR and Hadoop software. Nodes must meet minimum requirements for operating system, memory and disk resources and installed software, such as Java. Including unsuitable nodes in a cluster is a major source of installation difficulty.

Table 1. Node Requirements
Component	Requirements
CPU	64-bit
OS	RedHat, Oracle Linux, CentOS, SUSE, or Ubuntu
Memory	8 GB minimum, more in production
Disk	Raw, unformatted drives and partitions
DNS	Hostname, reaches all other nodes
Users	Common users across all nodes; passwordless ssh (optional)
Java	Must run Java
Other	NTP, Syslog, PAM

Use the subsequent sections as a checklist to make each candidate node suitable for its assigned roles. Once each node has been prepared or disqualified, install MapR software.