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.
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.
- Administering Users and Clusters
  Lists topics that help manage a MapR cluster.
- Administering Nodes
  Provides a synopsis of managing nodes in a cluster.
- Administering Volumes
  This section provide information about how to organize and manage data using volumes, a unique feature of MapR clusters.
- Administering Files and Directories
  - Using Global File System Checking
    Describes how to use the gfsck command to check and repair file system errors.
  - Setting MapR File System Permissions
  - Managing File and Directory ACEs
    Describes the implications of setting access control expressions on files and directories.
  - Managing Chunk Size
    Describes the considerations for managing the chunk size for map tasks.
  - Managing Compression
    Lists the advantages of using compression.
  - Managing Hard Links
    Explains what hard links are, and their limitations.
  - Managing Extended Attributes
    Describes what extended attributes are, and the POSIX permissions that you need to manage them.
  - Managing Core Files
    Describes how to set the location for core files.
  - Migrating Files from the Edge Cluster to AWS S3
    Describes how new or changed files are automatically uploaded to AWS S3 by the File Migration service.
    - How the File Upload Process Works
    - Configuring MapR for HTTPS Upload to S3
      Describes how to validate and trust security certificates to permit files to be uploaded to Amazon S3.
    - Accessing the Service UI
      Describes how to access the MapR Service interface.
    - Setting up Authentication for Users
    - Configuring File Migration Service Using the UI
    - Configuring the File Migration Service Using the Properties File
      Lists the procedure to configure the File Migration Serivce using a properties file.
    - Managing the Service
      Describes how to start, stop, and restart services using either the Control System or the CLI.
    - Managing Policies
      Explains how to edit the Purge Interval policy and enable or disable Server Side encryption.
    - Configuring Logging
      Provides an overview of standard Log4J configuration.
    - Troubleshooting
  - Managing Tiered Files from the Command-line
- Administering Tables
  Administration of the MapR Database is done primarily via the command line (maprcli) or with the Managed Control System (MCS). Regardless of whether the MapR Database table is used for binary files or JSON documents, the same types of commands are used with slightly different parameter options. MapR Database administration is associated with tables, columns and column families, and table regions.
- Administering Streams
- Administering MapR Gateways
  A MapR gateway mediates one-way communication between a source MapR cluster and a destination cluster. You can replicate MapR Database tables (binary and JSON) and MapR Event Store For Apache Kafka streams. MapR gateways also apply updates from JSON tables to their secondary indexes and propagate Change Data Capture (CDC) logs.
- Administering Services
- Monitoring the Cluster
  This section describes how to monitor the health and performance of a MapR cluster.
- Configuring Security
  Describes how to configure security and manage secure clusters.
- Managing Secure Clusters
  Provides procedures that will enable you to use MapR clusters securely.
- Administering the MapR Data Access Gateway
  The MapR Data Access Gateway is a service that acts as a proxy and gateway for translating requests between lightweight client applications and the MapR cluster. This section describes considerations when upgrading the service, how to modify configuration settings, and how to administer and manage the service.
- Planning for High Availability
- Administrator's Reference
  This section contains in-depth reference information for the administrator.
- Troubleshooting Cluster Administration
  Lists the common errors and their solutions.
- Best Practices for Backing Up MapR Information
  Lists the best practices and performance considerations to follow when backing up MapR information.
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.

Managing the Service

Describes how to start, stop, and restart services using either the Control System or the CLI.

About this task

You can start, stop, and restart the service and view the service dashboard.

Starting, Stopping, and Restarting the Service Using the Control System

Procedure

Log in to the Control System and click Services to display the list of services installed on the cluster.
See Managing Services for information on starting, stopping, and restarting the services using the Control System.

Starting, Stopping, and Restarting the Service Using the CLI

Procedure

To:

Start the service, run the following command:

maprcli node services -name filemigrate -nodes <node to start> -action start

Stop the service, run the following command:

maprcli node services -name filemigrate -nodes <node to start> -action stop

Restart the service, run the following command:

maprcli node services -name filemigrate -nodes <node to start> -action restart

Restarting the Service Using the Service UI

Procedure

Log in to the UI and click Restart File Migration Service.

Viewing the Service Dashboard

Procedure

Log in to the service UI to view the following:

Uploaded Files - Displays the number of files uploaded in the last hour.
Waiting Uploads - Displays the number of files waiting to be uploaded.
Uploaded Data - Displays the number of bytes uploaded in the last hour.