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
- 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.
  - Configuring Data-Fabric Security
    Provides usage information for frequently used security functionality, including Access Control Lists (ACLs), Access Control Expressions (ACEs), file permissions, and subnet whitelisting.
    - Getting Started with HPE Ezmeral Data Fabric Security
      Describes quick implementation of security.
    - Managing Encryption for MapR Core
      Provides information that allows you to use encryption across the MapR platform.
    - Determining if a Cluster is Secure and Enabled for Encryption
      Explains how to use the Control System, the CLI, and REST API to determine whether a cluster is secure and whether on-wire encryption and data-at-rest encryption are enabled at the cluster and volume levels.
    - Configuring Authentication
      Provides information about MapR ticket, Kerberos, Pluggable Authentication Module (PAM) authentication.
      - Managing Tickets
        Introduces authentication using tickets for users and HPE Ezmeral Data Fabric servers.
        How Tickets Work
        Explains the concept of tickets and how they work.
        Generating a HPE Ezmeral Data Fabric User Ticket
        Describes what a user ticket is, and how to generate a user ticket.
        Generating a Service Ticket
        Generating a Service with Impersonation Ticket
        Generating a Ticket for a Tenant
        Explains what tenant tickets are and how to generate one.
        Generating a Data Fabric Ticket from a Kerberos Ticket
        Configuring PAM Authenticator
      - Configuring Kerberos
        Describes how Kerberos works with HPE Ezmeral Data Fabric tickets.
      - Configuring PAM
        Describes how PAM works with MapR.
    - Managing Access Controls
      Describes how to create, enable, and use ACLs and ACEs.
    - Configuring Policy-Based Security
      Starting in HPE Ezmeral Data Fabric 6.2.0 (EEP 7.0.0), HPE Ezmeral Data Fabric supports Policy-Based Security. Policy-Based Security is a mechanism that enables administrators to create security policies for simplified data management. Administrative users can create and manage security policies through the control system, maprcli, REST API, Hadoop and Linux commands, and Java APIs.
    - Customizing Security in HPE Ezmeral Data Fabric
      Describes the .customSecure file and how HPE Ezmeral Data Fabric 6.x handles custom security settings.
  - Managing Impersonation
    Provides instructions for enabling and using MapR impersonation features.
- 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.

Generating a Data Fabric Ticket from a Kerberos Ticket

About this task

On clusters that use Kerberos for authentication, a Data Fabric ticket is implicitly obtained for a user that runs a Data Fabric command without first using the maprlogin utility.

If you want to use a Kerberos ticket to generate a maprticket, follow these procedure below.

Procedure

Obtain a Kerberos identity by running kinit or by another mechanism.
Run maprlogin kerberos to indicate that you have an existing Kerberos ticket. You can also specify these options: [ -cluster ] The name of the cluster. [ -duration ] The ticket duration in seconds.