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.
- Planning the Cluster
  Describes information and factors used in planning your cluster.
- Installation Methods
  Describes different ways to install the HPE Data Fabric.
- Installing the HPE Data Fabric File Store
  Describes how to install File Store software with or without the Installer.
- Installing the HPE Data Fabric Object Store
  Describes installation of the HPE 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.
- Setting Up Clients and Services
  Describes how to set up and use interfaces to an HPE 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 Data Fabric
  Provides instructions for migrating business-critical data and applications from an Apache Hadoop cluster to an HPE 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.
  - Downloading a Patch
    Patches for the HPE Data Fabric can be downloaded from a secure FTP server.
  - Applying a Patch Using the Installer
    The Installer automates much of the work involved in applying patches.
  - Applying a Patch Manually
    HPE Data Fabric patches are version-specific and cumulative. Each patch contains the code fixes that were included in the previous patch for that release version.
  - Applying a Patch Using an Installer Stanza
    Applying a patch using an Installer Stanza leverages the automation provided by the patch-install capability of the web-based Installer.
  - Rolling Back a Patch
    Removing a previously installed patch is a manual process. You can revert to a previous version of the patch by first removing the current patch and then installing the previous version.
  - Applying a Patch for an Ecosystem Component
    Patches for ecosystem components are handled differently from patches for Data Fabric core software.
  - Special Considerations for Control System Patches
    Patches for the Control System are handled differently from patches for cluster data nodes and CLDB nodes.
  - Special Considerations for FUSE POSIX Patches
    Patches for some features, such as the FUSE POSIX client, can require post-installation steps.
  - Applying a Patch to a POSIX Client
    This procedure enables you to apply a patch to any of the HPE Data Fabric POSIX clients, which include the loopbacknfs POSIX client, the FUSE-based POSIX basic client, and the FUSE-based POSIX platinum client.
  - Applying the Patch to Configure Maximum Allowed Concurrent User Sessions
    Describes the procedure to apply the patch to configure the maximum allowed concurrent sessions for Data Fabric users.
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.
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.

Applying the Patch to Configure Maximum Allowed Concurrent User Sessions

Describes the procedure to apply the patch to configure the maximum allowed concurrent sessions for Data Fabric users.

About this task

You can configure the maximum allowed number of concurrent sessions for Data Fabric users logging in to the Control System. By doing so, you can either restrict the number of concurrent user sessions or allow any number of concurrent sessions for Data Fabric users.

ATTENTION

You cannot perform a rolling upgrade to apply the emergency bug fix (EBF) or patch to configure the maximum allowed number of concurrent user sessions.

Follow the steps given below to apply the EBF to configure the maximum allowed number of concurrent sessions for all Data Fabric users.

Stop the apiserver service on all the cluster nodes on which the apiserver service is running.
Apply the EBF/patch on all cluster nodes, after the apiserver service successfully stops running on the relevant cluster nodes.
If you wish to restrict the maximum concurrent user sessions, run the config save command to set the value for the apiserver.max.concurrent.user.sessions field. See config for details about apiserver.max.concurrent.user.sessions. This is an optional step.
TIP
You can run the config load command to confirm that the value of the apiserver.max.concurrent.user.sessions has been set correctly.
Run configure.sh on all nodes.
Restart the apiserver service on the relevant cluster nodes that were previously running the apiserver service.
IMPORTANT
If you wish to restrict the maximum allowed concurrent user sessions, DO NOT configure spring security concurrency control in session-management. For example, DO NOT use code similar to the following:
```
<session-management>
   <concurrency-control max-sessions="2" />
</session-management>
```

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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	October 2025
Edition	8.0.0
Topic last updated	2025-01-24