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 in the Cloud
Provides an overview of MapR cloud installer capabilities.
Known Issues for Cloud-Based Clusters

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.
- 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.

Known Issues for Cloud-Based Clusters

Before installing a MapR cluster in the cloud, be sure to review these known issues:

Issue	Description
IN-861	NVMe disks in Amazon AWS do not work with Ubuntu 14. As a result, using instance store (ephemeral disks) on Ubuntu 14 is not possible. Workaround: Use a different disk option, or upgrade to Ubuntu 16, if possible. Ubuntu 16 supports instance store (ephemeral disks).
IN-860	If you create a cluster using a MapR marketplace offering for Amazon AWS and use ephemeral drives, and you then shut down the cluster, most MapR services cannot be restarted. This happens because the disks are new, and the MapR cluster is not aware of the ephemeral drives. Workaround: Do not use clusters with ephemeral drives, or do not shut down the cluster. When the cluster is not in use, terminate the cluster.
IN-974	If you request public IP addresses for the MapR Installer nodes in Amazon AWS, the IP addresses can change after a shutdown and restart of the cluster, and the MapR Installer status page continues to display the old public IP addresses. Workaround: None.