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.
        Upgrading the MapR Client
        Depending on which MapR client you want to update, you will either need to install and reconfigure or perform a package upgrade.
        Upgrading the MapR POSIX loopbacknfs Client
        Perform a package upgrade to get a newer version of the MapR POSIX loopbacknfs Client.
        Upgrading the MapR loopbacknfs POSIX Client on a Linux Server
        This section describes how to upgrade the MapR loopbacknfs POSIX Client on a Linux server.
        Troubleshooting MapR loopbacknfs POSIX Client Upgrades
        If you are having difficulty upgrading the MapR POSIX client, it might be due to a shared-memory-segment lock.
        Migrating to FUSE-Based POSIX Clients
        This section describes how to migrate from the loopbacknfs POSIX client to the FUSE-based POSIX basic client.
        Upgrading the MapR FUSE POSIX Client on a Linux Server
        This section describes how to upgrade the MapR FUSE POSIX client on a Linux server.
        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.

Upgrading the MapR POSIX loopbacknfs Client

Perform a package upgrade to get a newer version of the MapR POSIX loopbacknfs Client.

To get a newer version of the MapR POSIX loopback NFS client, perform a package upgrade. MapR POSIX loopback NFS client can be upgraded or a fresh install can be performed.

Additionally, MapR POSIX loopbacknfs client can be migrated to a FUSE-based POSIX Basic client. MapR POSIX loopback NFS clients can not be migrated to FUSE-based Platinum POSIX clients.

See Migrating to FUSE-based POSIX Clients for more information.

NOTE Basic and Platinum POSIX client packages are recommended for fresh installation and for all new clusters.