About Release 7.6.1
This site contains documentation for HPE Ezmeral Data Fabric release 7.6.1, including installation, configuration, administration, and reference content, as well as content for the associated ecosystem components and drivers.
7.6.1 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.
- Planning the Cluster
  Describes information and factors used in planning your cluster.
- Installing Core and Ecosystem Components
  Describes how to install HPE Ezmeral Data Fabric software and ecosystem components with or without the Installer.
  - Data Fabric Repositories and Packages
    Describes the repositories for Data Fabric software and the ecosystem components.
  - Package Dependencies
    Lists the interdependencies between packages across all the supported Operating Systems
  - Preparing Each Node
    Defines minimum requirements for each node in your cluster.
    - CPU and Operating System
      Describes how to check whether your processor and operating system are supported by data-fabric software.
    - Memory and Disk Space
      Describes required and recommended memory, storage, and disk capacities for each node.
    - Connectivity
      This section describes and helps you troubleshoot connectivity requirements.
    - Java
      To run data-fabric software and Hadoop, you must install a supported Java Development Kit (JDK) on your node.
    - Infrastructure
      Identifies certain software and settings that contribute to your node's infrastructure.
      - Setting Resource Limits on CentOS/RedHat/Oracle Linux
        While you can use Warden to automatically set resource limits, you may want to set limits manually.
      - Setting Resource Limits on Ubuntu
        While you can use Warden to automatically set resource limits, you may want to set limits manually.
      - Setting Resource Limits on SLES
        While you can use Warden to automatically set resource limits, you may want to set limits manually.
      - SELinux Support
        HPE Ezmeral Data Fabric supports SELinux for cluster administrators who observe specific installation and administrative procedures.
  - Installing with the Installer
    The Installer automates the process of installing data-fabric software and offers you a variety of options to complete the installation.
  - Installing without the Installer
    Describes how to install data-fabric software and ecosystem components manually.
  - Configuring the Cluster
    Describes post-installation configuration tasks for HPE Ezmeral Data Fabric clusters.
- Installing the HPE Ezmeral Data Fabric File Store
  Describes how to install File Store software with or without the Installer.
- Installing HPE Ezmeral Data Fabric Object Store
  Describes installation of the HPE Ezmeral Data Fabric Object Store software with or without the Installer.
- Installing Kubernetes Interfaces for Data Fabric
  This section describes how to plan for and install the Container Storage Interface (CSI) Storage Plugin and the Kubernetes Interfaces for Data Fabric FlexVolume Driver.
- Upgrading Core or EEP Components
  Depending on your current configuration, you may choose to upgrade the release version (core), ecosystem components, clients, or monitoring components.
- Setting Up Clients and Services
  Describes how to set up and use interfaces to an HPE Ezmeral Data Fabric cluster from a client computer.
- Setting Up the Control System
  Describes how to configure and access the Control System.
- Migrating to the HPE Ezmeral Data Fabric
  Provides instructions for migrating business-critical data and applications from an Apache Hadoop cluster to an HPE Ezmeral Data Fabric cluster.
- Applying a Patch
  You can apply a patch by using the Installer, by using the command line (a manual process), or by using an Installer Stanza.
7.6.1 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
7.6.1 Administration
This section describes how to manage the nodes and services that make up a cluster.
7.6.1 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.

SELinux Support

HPE Ezmeral Data Fabric supports SELinux for cluster administrators who observe specific installation and administrative procedures.

Before using the HPE Ezmeral Data Fabric with SELinux, note the following considerations and best practices:

Installation: Hewlett Packard Enterprise recommends disabling SELinux before installing data-fabric software. If you install the cluster by using the Installer, the Installer disables SELinux automatically. If you require the extra security provided by SELinux, you can enable SELinux and place it in enforcing mode after installation. Also, rules can be defined by observing regular operations while the cluster is running.
Known Issues: For a list of known issues that you should be aware of when using SELinux with the HPE Ezmeral Data Fabric, see Known issues: Running HPE Ezmeral Data Fabric on nodes with SELinux in enforcing mode.
Warnings in the Audit Log: While using the HPE Ezmeral Data Fabric, if you see warnings in the SELinux audit log (/var/log/audit/) related to data-fabric services, the cluster admin can fix them by using chcon or similar tools.
Cluster-Admin Use of systemctl: The data-fabric cluster admin (typically the mapr user) must be allowed to use systemctl. Without access to systemctl, Warden can fail to start cluster services.
System Administration: SELinux introduces significant complexity and should be managed by an experienced system administrator. Managing SELinux is outside the scope of data-fabric cluster-administration activities.
Utilities and Services That Must Not Be Blocked The following inexhaustive list of utilities and services must remain unblocked at all times for the HPE Ezmeral Data Fabric to run successfully in an SELinux environment:
- bash
- dmidecode
- glibc
- hdparm
- initscripts
- iputils
- irqbalance
- libgcc
- libstdc++
- lsof
- net-tools
- nfs-utils
- nss
- perl
- python
- redhat-lsb-core
- rpcbind
- shadow-utils
- syslinux
- userspace-rcu