IBM Streams 4.2

Configuring transport mechanisms for IBM Streams in streams processing applications

You can specify a global configuration for an application or specify different transport mechanisms for individual operators in the application.

Before you begin

Restriction: The LLM transport is not supported on IBM® Power Systems™ that are running little endian.

About this task

The sc compiler provides the -F, --use-transport option for setting the transport mechanism to use globally for an application. Individual SPL operators can be configured to override the global configuration selected by the -F option and use different transports for their inputs and outputs.

Procedure

To configure the TCP transport, use the -F tcp option. This option is the default if the -F option is not explicitly used. The default TCP transport does not have any configuration options.
To configure the IBM WebSphere® MQ LLM Reliable Unicast Messaging transport with TCP, use the -F llm_rum_tcp option. This is a high-performance, low-latency transport, which can be configured.
To configure the IBM WebSphere MQ LLM Reliable Unicast Messaging transport with InfiniBand, use the -F llm_rum_ib option. This is a high-performance low-latency transport, which can be configured.