HPE Ezmeral Data Fabric 6.1.x is In Maintenance and transitions to "End of Maintenance" in June 2024. Please see the latest documentation.

About MapR 6.1
This site contains the main documentation for Version 6.1 of the MapR Converged Data Platform, including installation, configuration, administration, and reference information.
6.1 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 MapR Ecosystem Components
  Describes how to install MapR software and ecosystem components with or without the MapR Installer.
- Installing the File Migration Service on the Edge Cluster
  Describes how to install the File Migration service on CentOS nodes.
- Installing the MapR XD Distributed File and Object Store
  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 and install the MapR Container Storage Interface (CSI) Storage Plugin and the MapR Data Fabric for Kubernetes FlexVolume Driver.
- Installing MapR in the Cloud
  Provides an overview of MapR cloud installer capabilities.
- Installing Metering
  This section describes how to install Metering by using the MapR Installer or manual steps.
- Upgrading MapR Core or EEP Components
  Depending on your current configuration, you may choose to upgrade the release version (core), ecosystem components, clients, or monitoring components.
  - Upgrade Workflows
    This section describes three common methods for upgrading from one MapR core release to another. The workflows in this section introduce you to the high-level steps for each method and provide links to pages showing more detail.
  - 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
      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.
      - Post-Upgrade Steps for MapR Core
        After upgrading MapR core, several manual steps are required.
        Considerations for Upgrades Using the MapR Installer
        If you use the MapR Installer to upgrade the cluster, some post-upgrade steps for MapR core do not need to be performed. This page describes the post-upgrade steps that are performed by the MapR Installer and the steps that you must perform manually.
        Step 1: Restart and Check Cluster Services
        After upgrading core using either a manual offline or rolling upgrade method (not upgrading with the MapR Installer) and upgrading your ecosystem components, configure and restart the cluster and services.
        Step 2: Manually Update Configuration Files
        After upgrading MapR core using a manual offline or rolling upgrade method, update your configuration files.
        Step 3: Upgrade Clients
        After you upgrade your cluster, you may also need to upgrade your MapR client or MapR POSIX client.
        Step 4: Enable New Features
        Describes the new features to enable after upgrading MapR core without the MapR Installer using a manual offline or rolling upgrade method.
        Step 5: Update Hadoop Configuration File
        When manually upgrading (manual offline and manual rolling upgrade) from version 4.x to version 6.x and switching from classic mode to YARN mode, you must manually update the Hadoop configuration file.
      - Installing Additional MapR Core Features
        Some features can require additional configuration or the installation of additional packages after an upgrade to a new release.
      - Securing the Upgraded Cluster
        Nonsecure clusters can be secured after the upgrade process.
  - Upgrading Ezmeral Ecosystem Packs
    Describes how to upgrade Ezmeral Ecosystem Packs (EEPs), either as part of a MapR core upgrade or to take advantage of a new EEP 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 and Services
  Describes how to set up and use interfaces to an cluster from a client computer.
- Setting Up the Control System
  Describes how to configure and access the Control System.
- 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 an Installer Stanza.
6.1 MapR Data Platform
MapR Data Platform is the industry-leading data platform for AI and analytics that solves enterprise business needs.
6.1 Administration
This section describes how to manage the nodes and services that make up a cluster.
6.1 Development
This section contains information related to application development for Ezmeral ecosystem components and MapR Data Platform products, including the file system, Database (Key-Value and JSON), and Event Streams.
Other Docs
This section contains release-independent information, including: MapR Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other MapR version documentation.
Glossary
Definitions for commonly used terms in MapR Converged Data Platform environments.

Considerations for Upgrades Using the MapR Installer

If you use the MapR Installer to upgrade the cluster, some post-upgrade steps for MapR core do not need to be performed. This page describes the post-upgrade steps that are performed by the MapR Installer and the steps that you must perform manually.

This information is relevant to the workflow for MapR Installer upgrades. The information on this page also applies to upgrades performed using MapR Installer Stanzas.

Post-Upgrade Step for MapR Core	Performed by MapR Installer?	Notes
Step 1: Restart and Check Cluster Services	Yes, with exceptions. See the notes.	Usually, you do not need to perform this step. When you use the MapR Installer to upgrade, the Installer runs `configure.sh` on each node, starts ZooKeeper and Warden, and sets the new cluster version. If the `env_override.sh` file is present, the Installer uses environment variables from the `env_override.sh` file. If you use the MapR Installer to upgrade, you need to perform this step manually only if you make significant changes to configuration files after the upgrade (see Step 2: Manually Update Configuration Files).
Step 2: Manually Update Configuration Files	No	You might need to perform this step. The MapR Installer uses default configuration-file settings and does NOT update configuration files. You must perform this step after upgrading using the MapR Installer only if you have made configuration-file customizations that you want to migrate to the upgraded cluster. Depending on the customization, you might also need to restart services or even the full cluster after updating configuration files.
Step 3: Upgrade Clients	No	You need to perform this step. Enabling some new features, such as `mfs.feature.name.container.size.control` can cause client failures if the features are enabled before the clients are upgraded.
Step 4: Enable New Features	Yes	You do not need to perform this step. The MapR Installer enables new features as part of a version upgrade.
Step 5: Update Hadoop Configuration File	Yes	You do not need to perform this step. The MapR Installer updates the Hadoop configuration file, if necessary, as part of a version upgrade.