About
This site contains documentation for HPE Ezmeral Runtime Enterprise, including installation, configuration, administration, and reference content, and information about related solutions. Examples of related solutions include HPE Ezmeral ML Ops and HPE Ezmeral Runtime Analytics for Apache Spark.
5.6 Reference
- HPE Ezmeral Runtime Enterprise 5.6
- Software Versions
- Kubernetes Bundles
  Kubernetes Bundles are software packages that can contain software to support newer Kubernetes versions, updated add-ons, and software fixes. Kubernetes Bundles enable you to update your deployment without requiring you to upgrade to a newer version of HPE Ezmeral Runtime Enterprise.
- Quick Links
- What's New in Version 5.6.x
  This topic summarizes the new features and important changes in HPE Ezmeral Runtime Enterprise 5.6.x compared to HPE Ezmeral Runtime Enterprise 5.5.x.
- Prepackaged Applications
- On-Premises, Hybrid, and Multi-Cloud Deployments
- Third-Party Licenses
- Universal Concepts
- Accessing HPE Ezmeral Runtime Enterprise Applications and Services
- Navigating the GUI
  Describes the screen layout of the HPE Ezmeral Runtime Enterprise graphical user interface (GUI).
- HPE Ezmeral ML Ops
  The topics in this section provide information about machine learning operations (ML Ops/MLOps) using HPE Ezmeral ML Ops in HPE Ezmeral Runtime Enterprise. (Not available with HPE Ezmeral Runtime Enterprise Essentials.)
- Spark on Kubernetes
  The topics in this section provide information about Apache Spark on Kubernetes in HPE Ezmeral Runtime Enterprise. (Not available with HPE Ezmeral Runtime Enterprise Essentials.)
- Kubernetes
- Platform Administration
  Tasks and reference information for Platform Adminstrators (Site Administrators) managing the HPE Ezmeral Runtime Enterprise deployment.
- HPE Ezmeral Data Fabric Introduction
  HPE Ezmeral Data Fabric is a platform for data-driven analytics, ML, and AI workloads. The patented file-system architecture was designed and built for performance, reliability, and scalability. HPE Ezmeral Runtime Enterprise supports multiple implementations of HPE Ezmeral Data Fabric.
- HPE Ezmeral Data Fabric on Kubernetes Administration
  You administer HPE Ezmeral Data Fabric on Kubernetes and Embedded Data Fabric as part of your HPE Ezmeral Runtime Enterprise environment. The external "bare metal" implementation of HPE Ezmeral Data Fabric is administered through its own tools and has its own documentation. (Not available in HPE Ezmeral Runtime Enterprise Essentials.)
- GPU and MIG Support
  This topic provides information about support for NVIDIA GPU and MIG devices on HPE Ezmeral Runtime Enterprise.
- Licensing
- Global Settings
- Planning the Deployment
  A high-level overview of the items to consider when planning an HPE Ezmeral Runtime Enterprise deployment.
- System Requirements
- Deploying the Platform
  The topics in this section describe deploying HPE Ezmeral Runtime Enterprise. Deployment is divided into phases.
- Upgrading to HPE Ezmeral Runtime Enterprise 5.6.x
  This article describes the process to upgrade to the latest 5.6.x version of HPE Ezmeral Runtime Enterprise.
- Upgrading from HPE Ezmeral Runtime Enterprise Essentials
  Upgrade from HPE Ezmeral Runtime Enterprise Essentials to the full-featured HPE Ezmeral Runtime Enterprise or to HPE Ezmeral ML Ops by uploading a license. No additional steps are required.
- Manually Restarting HPE Ezmeral Runtime Enterprise Services
  This topic describes restarting HPE Ezmeral Runtime Enterprise services in non-Kubernetes hosts.
- Uninstalling and Reinstalling HPE Ezmeral Runtime Enterprise
- Support and Troubleshooting
  - Lockdown Mode
  - Alerting
  - Setting up Nagios Email Alerts
  - Platform Logs
  - Data Fabric Core Logs
    The fluentd component reads and parses the following Data Fabric Core log files on each node in the cluster.
  - The Support/Troubleshooting Screen
  - Generating a Support Bundle
    Use the Support/Troubleshooting screen to generate a support bundle.
  - Collecting Support Bundles
    As an alternative to using the Support/Troubleshooting screen to generate a support bundle, you can manually collect logs to include in a support bundle by entering commands.
  - Support Bundle Contents
  - Troubleshooting Overview
    - Troubleshooting Services
      - Restarting Gateway Services
        Some issues with Gateway services on HPE Ezmeral Runtime Enterprise can be resolved by restarting the epmd, haproxy, beam.smp, and nagios services on the Gateway hosts.
    - Basic Troubleshooting
    - HPE Kubernetes Cluster Troubleshooting
      Troubleshooting Kubernetes clusters that are running the Hewlett Packard Enterprise distribution of Kubernetes can involve examining the .service files, environment variables, and using journald to examine logs.
    - Kubernetes Issues
      The topics in this section describe support and troubleshooting for Kubernetes issues in HPE Ezmeral Runtime Enterprise.
    - General Issues
      The topics in this section describe support and troubleshooting for general issues in HPE Ezmeral Runtime Enterprise.
App Workbench 5.1

Restarting Gateway Services

Some issues with Gateway services on HPE Ezmeral Runtime Enterprise can be resolved by restarting the epmd, haproxy, beam.smp, and nagios services on the Gateway hosts.

Prerequisites

Required access rights: Platform Administrator

About this task

Some issues with Gateway services can be fixed by restarting services on each Gateway host. Perform this task on each Gateway host in the deployment.

Procedure

Execute the following commands:

pkill -9 epmd
pkill -9 haproxy
pkill -9 beam.smp

Restart the epmd, haproxy, and beam.smp services by executing the following command:
```
service bds-controller restart
```

Restart the Nagios container:

# Fetch the container id of the nagios container
CONTAINER_ID=$(docker ps | grep epic-nagios | awk '{print $1}')

# Restart the nagios container
docker restart $CONTAINER_ID

Wait until the services have restarted.