Configuring TAO's Components

Overview

As described in the options documentation, various components in TAO can be "tuned" by specifying options for those components. Here we present some examples of how to combine these options to achieve certain effects on ORB operations.

Where Are Options Specified?

TAO configures itself using the ACE Service Configurator framework. Thus, options are specified in the familiar svc.conf file (if you want to use a different file name, use the -ORBsvcconf option

Roadmap

Details for the following configurations are provided.

• Single-threaded, reactive model.
• Multiple threads, thread-per-connection model.
• Multiple threads, orb-per-thread model.
• Multiple threads, orb-per-thread, thread-per-connection model.
• Multiple threads, thread-pool model. (Not yet implemented.)
• Multiple threads, orb-per-thread, thread-pool model. (Not yet implemented.)

Each configuration has the following information:

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.
Options	Specifies the options for each service in order to utilize this configuration.

Configurations

Single-threaded, reactive model.

Typical Use	This is definitely the most common use of an ORB in a server situation, where there is a single thread handling requests from multiple clients.
Number Threads	1
Thread Creator	Operating System or whoever creates the main thread in a process.
Resource Location	Resources are stored process-wide.
Thread task	The single thread processes all connection requests and CORBA messages.
Options	TAO_Resource_Manager: -ORBresources global TAO_Server_Strategy_Factory: -ORBconcurrency reactive

Multiple threads, thread-per-connection model.

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.

Multiple threads, orb-per-thread model.

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.

Multiple threads, orb-per-thread, thread-per-connection model.

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.

Multiple threads, thread-pool model. (Not yet implemented.)

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.

Multiple threads, orb-per-thread, thread-pool model. (Not yet implemented.)

Typical Use	A brief description of the scenario and its typical use.
Number Threads	The number of threads used by ORB-related activities.
Thread Creator	Identifies the creator of the threads discussed above.
Resource Location	Where information on various resources is stored.
Thread task	Describes what task is undertaken for each thread.

Back to the TAO components documentation.