About Release 7.9.0
This site contains documentation for HPE Ezmeral Data Fabric release 7.9.0, including installation, configuration, administration, and reference content, as well as content for the associated ecosystem components and drivers.
7.9.0 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.
7.9.0 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
7.9.0 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
  - Managing Streams
    This topic provides information about managing streams in HPE Ezmeral Data Fabric Streams.
  - Managing Topics
    Topics are logical collections of messages. The following sections describe how to create and manage topics.
  - Managing Stream Replication
    This section contains topics about setting up stream replication and administering existing replicas.
  - Preparing Clusters for Log Compaction
    Describes how to prepare your environment so you can use log compaction.
  - Mirroring Topics with Apache Kafka MirrorMaker
    Use the Apache Kafka MirrorMaker utility either to mirror topics that are in Apache Kafka clusters to streams that are in HPE Ezmeral Data Fabric clusters or to Mirror topics that are in HPE Ezmeral Data Fabric clusters to Apache Kafka clusters.
  - Mirroring Topics with HPE Ezmeral Data Fabric MirrorMaker 2
    MirrorMaker 2.0 is a multi-cluster, cross-data-center replication engine based on the Kafka Connect framework. MirrorMaker 2 is available starting in EEP 8.0.0.
- 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 Data Fabric 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.
- IPv6 Support in Data Fabric
  Describes the IPv6 support feature for Data Fabric.
7.9.0 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.

Preparing Clusters for Log Compaction

Describes how to prepare your environment so you can use log compaction.

Installing with the Data Fabric Installer

When you use the Data Fabric Installer to install HPE Ezmeral Data Fabric Streams, a local gateway is also locally installed so that log compaction can be implemented. To configure for log compaction, see maprcli stream create and stream edit.

Installing without the Data Fabric Installer

Other sections of the documentation describe the detailed steps for installing and configuring without the Data Fabric installer. Generally, you need to perform the following steps:

Install the Data Fabric software.To install Data Fabric without using the Data Fabric installer, follow the steps outlined at Installing without the Installer.
Install the Data Fabric gateway on your local cluster. Since gateways for log compaction are installed on the local cluster, no configuration is needed. See Gateways and Stream Replication for general information about gateways.

Adding Gateways for Load Balancing

Since the number of gateways impacts the compaction process, you might want to increase the number of gateways on the cluster to improve the load distribution. To add gateways for log compaction, you install additional Data Fabric gateways on your local cluster. See Gateways and Stream Replication for general information about gateways.

NOTE

No configuration is required because the additional gateways are installed on the local clusster.

For More Information

See the following topics for more information:

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HPE Ezmeral Data Fabric – Customer-Managed 7.9.0 Documentation
Abstract	This site contains documentation for the customer-managed platform of the HPE Ezmeral Data Fabric version 7.9.0 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
Published	December 2024
Edition	7.9.0