HPE Ezmeral Data Fabric 6.2 is In Maintenance and transitions to "End of Maintenance" in June 2024. Please see the latest documentation.

About Release 6.2
This site contains documentation for HPE Ezmeral Data Fabric release 6.2 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
6.2 Installation
This section contains information about installing and upgrading HPE Ezmeral Data Fabric software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a HPE Ezmeral Data Fabric cluster.
6.2 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
6.2 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 data-fabric 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 HPE Ezmeral Data Fabric 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 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 HPE Ezmeral Data Fabric 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 HPE Ezmeral Data Fabric 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 HPE Ezmeral Data Fabric Database is done primarily via the command line (maprcli) or with the Managed Control System (MCS). Regardless of whether the HPE Ezmeral Data Fabric Database table is used for binary files or JSON documents, the same types of commands are used with slightly different parameter options. HPE Ezmeral Data Fabric Database administration is associated with tables, columns and column families, and table regions.
- Administering Streams
- Administering Data Fabric Gateways
  A HPE Ezmeral Data Fabric gateway mediates one-way communication between a source HPE Ezmeral Data Fabric cluster and a destination cluster. You can replicate HPE Ezmeral Data Fabric Database tables (binary and JSON) and HPE Ezmeral Data Fabric Streams streams. HPE Ezmeral Data Fabric 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 Data Access Gateway
  The HPE Ezmeral Data Fabric Data Access Gateway is a service that acts as a proxy and gateway for translating requests between lightweight client applications and the HPE Ezmeral Data Fabric 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 HPE Ezmeral Data Fabric Information
  Lists the best practices and performance considerations to follow when backing up HPE Ezmeral Data Fabric information.
6.2 Development
This section contains information related to application development for Ezmeral ecosystem components and HPE Ezmeral Data Fabric products, including the file system, Database (Key-Value and JSON), and Event Streams.
Other Docs
This section contains release-independent information, including: Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other data-fabric version documentation.
Glossary
Definitions for commonly used terms in MapR Converged Data Platform environments.

Managing Policies

Explains how to edit the Purge Interval policy and enable or disable Server Side encryption.

About this task

You can modify the Purge Interval policy and Server Side Encryption settings using the UI. You can also modify the properties directly in the properties file.

NOTE Editing the properties both through the service UI and directly in the properties file may lead to inconsistencies.

Modifying Purge Interval

Procedure

Log in to the UI and click associated with the purge interval value to edit.
Enter the value you want in the field.
Click to save the changes.
If you want, you can click to cancel the edit operation.
Restart the service for the changes to take effect.
See Restarting the Service Using the Service UI.

Enabling or Disabling Server Side Encryption

Procedure

Log in to the UI and select (to enable) or clear (to disable) the checkbox () associated with the policy.
Restart the service for the changes to take effect.
See Restarting the Service Using the Service UI.

Editing Properties in the Properties File

About this task

You can directly edit the maprfs:///var/mapr/filemigrate/FileMigrate.properties file. See FileMigrate.properties for complete list of properties that can be set or modified in the file.

Procedure

Stop the File Migration service.
Make the necessary changes.
Restart the service using the maprcli command.
See Starting, Stopping, and Restarting the Service Using the CLI.
NOTE If you modified the file directly, you must restart the service using the maprcli command.

Removing a Policy

Procedure

Log in to the UI and click

associated with the policy to remove.