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

6.0 Installation
This section contains information about installing and upgrading MapR software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a MapR cluster.
- Planning the Cluster
  Describes information and factors used in planning your cluster.
- Installing MapR and/or MapR Ecosystem Components
  Describes how to install MapR software and ecosystem components with the MapR Installer or without the MapR Installer.
  - MapR Repositories and Packages
    Describes the repositories for MapR software and Hadoop Ecosystem tools.
  - 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 describes and helps you troubleshoot 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.
- Installing the File Migration Service on the Edge Cluster
- Installing MapR-XD
  Describes how to install MapR-XD software with or without the MapR Installer.
- Installing MapR Data Fabric for Kubernetes
  This section describes how to plan for, install, and upgrade the MapR Container Storage Interface (CSI) Storage Plugin and MapR Data Fabric for Kubernetes FlexVolume Driver.
- Installing MapR in the Cloud
  Provides an overview of MapR cloud installer capabilities.
- Upgrading MapR Core 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.
- Setting Up Clients
  Describes how to set up and use interfaces to a MapR cluster from a client computer.
- Setting Up the MapR Control System
  Describes how to configure and access the MapR Control System (MCS).
- 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 x86
OS	RedHat, Oracle Linux, CentOS, SUSE, or Ubuntu
Memory	16 GB minimum, more in production
Disk	Raw, unformatted drives and no partitions
DNS	Hostname, reaches all other nodes
Users	Common users across all nodes; passwordless ssh (optional)
Java	Must run Java 1.8
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.