Home
Installing
Use this information to install, upgrade, and uninstall the Teracloud® Streams product.
Planning to install Teracloud® Streams
To plan for installing Teracloud® Streams, start by reviewing the information in the planning roadmap.
Considerations for environments with multiple resources
Review these options and requirements for Teracloud® Streams environments before you install the product.
Development and test environment considerations
If you do not need high availability with automatic recovery from failures, a development or test environment might be your preferred option.

Welcome
Learn about the core capabilities of Teracloud® Streams, its architecture, and key concepts.
Installing
Use this information to install, upgrade, and uninstall the Teracloud® Streams product.
- Planning to install Teracloud® Streams
  To plan for installing Teracloud® Streams, start by reviewing the information in the planning roadmap.
  - Preparing to install Teracloud® Streams
    Use the information in this topic to plan and prepare for your Teracloud® Streams installation. The plan that you create for your environment determines your tasks and choices throughout the installation process.
  - Considerations for environments with multiple resources
    Review these options and requirements for Teracloud® Streams environments before you install the product.
    - Production environment considerations
      For production environments, the preferred and most reliable architecture uses multiple resources. This configuration provides high availability, ensuring that Teracloud® Streams continues to run even if individual resources fail or become unavailable.
    - Development and test environment considerations
      If you do not need high availability with automatic recovery from failures, a development or test environment might be your preferred option.
  - Hardware requirements
    Before you install Teracloud® Streams, ensure that the target system satisfies the minimum hardware requirements.
  - Software requirements
    Before you install Teracloud® Streams, run the dependency checker script to verify that the target system satisfies the product software requirements.
  - Domain controller service options
    A domain controller service runs on every resource in a Teracloud® Streams domain and manages all of the other services on that resource. You can set up the domain controller service as a registered Linux™ system service or an unregistered service.
  - Firewall configuration guidelines
    If firewall usage is required, the preferred configuration is to set up a firewall at the perimeter of the Teracloud® Streams cluster to restrict network access to resources in the cluster but not communication between the resources. When any communication passes through a firewall, latency is introduced. These guidelines apply to clients that are in the Teracloud Streams cluster as well as clients that are external to the cluster.
  - Linux ulimit configuration guidelines
    The default Linux™ user limit (ulimit) values might be too small for some Teracloud® Streams environments. Use these guidelines to ensure that your ulimit settings are sufficient for Teracloud Streams.
  - Name resolution requirements for resources
    All resources must satisfy the product network configuration requirements or Teracloud® Streams fails to start on the resource.
- Installing the Teracloud® Streams product
  Use these procedures to install Teracloud® Streams Version 7.2.
- Upgrading Teracloud® Streams
  Use these procedures to install a new version of Teracloud® Streams when a previous version of the product is already installed, or to update a Version 7.2 Non-Production Edition license.
- Uninstalling Teracloud® Streams
  Use this procedure to remove the Teracloud® Streams product from your system.
Configuring
Create a basic or an enterprise domain which is a single point for configuring and managing common resources, security, and instances.
Administering
Administer the product by using the Teracloud® Streams graphical user interface, APIs, or the streamtool command-line interface.
Developing
Develop stream applications with the Streams Processing Language (SPL), Java, and Python.
Troubleshooting
Resolve problems with Teracloud® Streams using the troubleshooting tools provided with the product as well as the resources offered by Teracloud Support.
Reference
Find details on the SPL language, toolkits, APIs, commands, and more.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

Considerations for Teracloud® Streams development and test environments

If you do not need high availability with automatic recovery from failures, a development or test environment might be your preferred option.

Development or test environment

A non-root user installs Teracloud® Streams on each resource or uses a shared file system.
- If Teracloud® Streams is installed on each resource, you can use either of the following options:
  - Install the main installation package on at least one resource and the domain host installation package on all additional resources.
  - Install the main installation package on all resources.
  The main installation package includes all of the product files. The domain host installation package contains a subset of the product files.
- If a shared file system such as NFS or GPFS™ is used, install Teracloud® Streams in a shared directory that is accessible from each resource.
Set up the domain controller service on all resources. For more information, see Options for setting up the domain controller service on Teracloud Streams resources.
Set up an Apache ZooKeeper server and your user authentication method before you create a Teracloud® Streams enterprise domain.
- For managing and storing configuration information, Teracloud® Streams requires a ZooKeeper server.
- For high availability, you can use a Lightweight Directory Access Protocol (LDAP) server or Pluggable Authentication Module (PAM) with the LDAP backend for default user authentication. After creating the domain, you can use the following additional options to customize user authentication:
  - Login module authentication
  - Client certificate authentication