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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.
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.
Upgrading MapR Core
Describes the process of upgrading MapR Core.

MapR 6.0 Documentation

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.
- 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.
  - Upgrading MapR Core
    Describes the process of upgrading MapR Core.
    - Upgrading and Your License
      If you are upgrading from MapR version 5.0 or earlier, the Base License file must be manually updated on all nodes in your cluster.
    - MapR Core Upgrade Process
      When you upgrade MapR Core, you will also upgrade a number of cluster components.
    - Planning Your MapR Core Upgrade
      This section describes how to develop a successful plan for your upgrade process.
    - Preparing to Upgrade MapR Core
      Complete these pre-upgrade steps for MapR Core.
    - Upgrading MapR Core With the MapR Installer
      If the cluster that you want to upgrade was installed using the MapR Installer, use the MapR Installer to upgrade MapR core.
    - Upgrading MapR Core Without the MapR Installer
      You can upgrade MapR Core without using the MapR Installer.
    - Finishing the MapR Core Upgrade
      This section provides post-upgrade steps for MapR Core.
  - Upgrading MapR Ecosystem Packs
    Describes how to upgrade MapR Ecosystem Packs (MEPs), either as part of a MapR Core upgrade or to take advantage of a new MEP for the current version of MapR Core.
  - Preparing the Cluster for a Maintenance Update
    This section identifies how to prepare for applying either a minor update or a patch.
  - Performing a Maintenance Update
    Perform a maintenance update when you want to upgrade to a new patch version of MapR Core or apply a patch.
- 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.

Upgrading MapR Core

Describes the process of upgrading MapR Core.

Upgrading MapR Core typically includes upgrading:

MapR Core
Ecosystem Components
MapR Client

Upgrading MapR Core means you will need to upgrade to a MapR Ecosystem Pack (MEP). Upgrading to MapR 6.0 or later requires you to upgrade to MEP 4.0.0 or later before you can enable MapR 6.x features.

The steps for upgrading a MEP are in another section of this guide because MEPs can be upgraded independently of the MapR Core version. The following procedures prompt you when it is necessary to plan for or upgrade a MEP.

Upgrading MapR Core consists of the following steps:

Planning the Upgrade – Determine the upgrade method, when to upgrade, and whether ecosystem components or MapR clients need to be upgraded along with MapR core.
Preparing to Upgrade – Prepare the cluster for upgrade while it is still operational. This includes pre-upgrade steps for MapR core and ecosystem components.
Upgrading the Cluster
- Upgrading with the MapR Installer - Use a web interface that automates the upgrade of MapR core and ecosystem components.
- Upgrading without the MapR Installer - Perform steps to upgrade MapR core and manually upgrade each ecosystem component.
Finishing the Upgrade -Complete the post-upgrade steps for MapR core and any ecosystem components that you upgraded.
Upgrading MapR Clients – Perform steps to upgrade the MapR client.

NOTE: In this document, the existing version refers to the MapR version that you are upgrading from and the new version refers to the MapR version that you are upgrading to.

Instructions in the following sections guide you through each upgrade step: