About Release 8.0.0
This site contains documentation for HPE Data Fabric release 8.0.0, including installation, configuration, administration, and reference content, as well as content for the associated ecosystem components and drivers.
8.0.0 Installation
This section contains information about installing HPE 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.
8.0.0 Upgrade
This section describes how to upgrade HPE Data Fabric software.
8.0.0 Data Fabric
HPE Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
8.0.0 Administration
This section describes how to manage the nodes and services that make up a cluster.
- Working with Multiple Fabrics Using the Data Fabric UI
  This section describes how you can get started learning about, installing, and using the HPE Data Fabric.
- 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 Data Fabric clusters.
- Administering Files and Directories
- Administering Tables
  Administration of the HPE Data Fabric Database is done primarily via the command line (maprcli) or with the Managed Control System (MCS). Regardless of whether the HPE 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 Data Fabric Database administration is associated with tables, columns and column families, and table regions.
- Administering Streams
- Administering Data Fabric Gateways
  A HPE Data Fabric gateway mediates one-way communication between a source HPE Data Fabric cluster and a destination cluster. You can replicate HPE Data Fabric Database tables (binary and JSON) and HPE Data Fabric Streams streams. HPE 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 allowlisting.
    - Getting Started with HPE Data Fabric Security
      Describes quick implementation of security.
    - Managing Encryption
      Provides information that allows you to use encryption across the HPE Data Fabric platform.
      - Enabling Wire-level Security
      - Disabling Wire-level Security
      - Enabling Encryption of Data at Rest
      - Converting to Cluster Enabled for Data-at-Rest Encryption
        Enable data-at-rest encryption for a cluster.
      - Managing SSL Certificates
        Re-running configure.sh after Configuration
      - Using Custom Signed Certificates
      - General Security for Ecosystem Components
    - 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.
    - Managing FIPS Security
      The topics in this section describe how to learn about and manage your FIPS configuration.
    - Configuring Authentication
      Provides information about Data Fabric tickets, Kerberos, Pluggable Authentication Module (PAM) authentication.
    - Managing Access Controls
      Describes how to create, enable, and use ACLs and ACEs.
    - Configuring Policy-Based Security
      Starting in HPE Data Fabric 6.2.0 (EEP 7.0.0), HPE 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 Data Fabric
      Describes the .customSecure file and how HPE Data Fabric 6.x handles custom security settings.
  - Managing Impersonation
    Provides instructions for enabling and using Data Fabric impersonation features.
- Managing Secure Clusters
  Provides procedures that will enable you to use Data Fabric clusters securely.
- Administering the Data Access Gateway
  The HPE 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 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 Data Fabric Information
  Lists the best practices and performance considerations to follow when backing up HPE Data Fabric information.
- IPv6 Support in Data Fabric
  Describes the IPv6 support feature for Data Fabric.
8.0.0 Development
This section contains information related to application development for Ezmeral ecosystem components and HPE 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.

Re-running configure.sh after Configuration

If the configure.sh script is initially run without the -genkeys option, the script generates a ssl_keystore file for use by the web server for the Control System.

Then if the configure.sh script is re-run with the -genkeys option, the system detects the existing ssl_* files and exits with an error to prevent inadvertent deletion or reuse of the ssl_keystore file.

NOTE

For general information on certificates, see SSL Certificates.

To re-run configure.sh on clusters without security features enabled:

Manually delete the ssl_keystore file on each node.
Run the configure.sh -genkeys -R command.

NOTE

The contents of the ssl_keystore file are unique to each node.

To re-run configure.sh on clusters where the contents of the ssl_keystore file are customized:

Run the configure.sh -genkeys -nocerts -R command to preserve your customizations.

SSL Keys Error Message

The error message will look like the following example:

/opt/mapr/server/configure.sh
        -secure -genkeys -C $CLDB_GRP -Z $ZK_GRP -RM $RM -HS
        $HISTORYSERVER
        <hostname1>: Configuring Hadoop-2.x at
        /opt/mapr/hadoop/hadoop-2.x
        <hostname1>: Done configuring Hadoop
        <hostname1>: CLDB node list:
        <hostname1>:7222,<hostname2>:7222,<hostname3>:7222
        
        <hostname1>: Zookeeper node
        list: <hostname1>:5181,<hostname2>:5181,<hostname3>:5181
        
        <hostname1>: Node setup configuration: cldb fileserver
        historyserver nfs nodemanager resourcemanager webserver
        zookeeper
        <hostname1>: Log can be found at:
        /opt/mapr/logs/configure.log
        <hostname1>: /opt/mapr/conf/ssl_keystore already exists
        <hostname1>: ERROR: could not generate ssl keys. See log file
        for more details
        clush: <hostname1>: exited with exit code 1

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HPE Data Fabric 8.0.0 Software Documentation
Abstract	This site contains documentation for HPE Data Fabric Software version 8.0.0 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
Published	November 2025
Edition	8.0.0
Topic last updated	2022-06-09