WebSphere MQ Publish/Subscribe

 

In a Publish/Subscribe system, there are two types of application: publisher and subscriber. Publishers supply information in the form of WebSphere MQ messages. When a publisher publishes a message, it specifies a topic, which identifies the subject of the information inside the message.

Subscribers are the consumers of the information that is published. A subscriber specifies the topics it is interested in by sending a subscription request to a broker in the form of a WebSphere MQ message.

The broker is an application supplied with WebSphere MQ Publish/Subscribe. It receives published messages from publishers and subscription requests from subscribers, and routes the published messages to the subscribers. A subscriber is sent messages only on those topics to which it has subscribed.

There are additional security considerations if you are using WebSphere MQ Publish/Subscribe. The user IDs associated with publishers and subscribers need authority to access the queues that they use to communicate with a broker. For more information, see the WebSphere MQ Publish/Subscribe User's Guide.

 

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Additional considerations

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