IBM Streams 4.3.0

Planning to install IBM Streams

To plan for installing IBM® Streams, start by reviewing the information in the planning roadmap.

Preparing to install IBM Streams
Use the information in this topic to plan and prepare for your IBM Streams installation. The plan that you create for your environment determines your tasks and choices throughout the installation process.
Considerations for IBM Streams environments with multiple resources
Review these options and requirements for IBM Streams environments before you install the product.
Hardware requirements for IBM Streams
Before you install IBM Streams, ensure that the target system satisfies the minimum hardware requirements.
Version management and rolling upgrade options for IBM Streams
IBM Streams supports managed versions and rolling upgrade.
Software requirements for IBM Streams
Before you install IBM Streams, run the dependency checker script to verify that the target system satisfies the product software requirements.
Options for setting up the domain controller service on IBM Streams resources
A domain controller service runs on every resource in an IBM 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 for IBM Streams
If firewall usage is required, the preferred configuration is to set up a firewall at the perimeter of the IBM 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 IBM Streams cluster as well as clients that are external to the cluster.
Guidelines for configuring Linux ulimit settings for IBM Streams
The default Linux user limit (ulimit) values might be too small for some IBM Streams environments. Use these guidelines to ensure that your ulimit settings are sufficient for IBM Streams.
Performance considerations and options for IBM Streams
There are several features and configuration options that might improve the performance of IBM Streams.
IBM Streams name resolution requirements for resources
All resources must satisfy the product network configuration requirements or IBM Streams fails to start on the resource.
Requirements and restrictions for the IBM Streams specialized toolkits
Several of the specialized toolkits require RPMs that are not required by the IBM Streams product. There are also toolkit restrictions on some platforms.