Understanding Clouds

When MPX-enabled server configurations are used by clients that reside in different geographic locations, multiple Message Brokers may need to be deployed and configured to forward messages to one another. Such a configuration is called a “Message Broker cloud”.

The cloud allows a subscriber to use ActiveMQ MPX features with server configurations that reside in another geographic location.

When a Message Broker receives a forwarded message from another Message Broker, it:

• Delivers the messages to the subscribers that are connected directly to it.
• Forwards the messages to other Message Brokers that require the message.

The following shows an example of a Message Broker cloud. Some components in the ActiveMQ MPX architecture are omitted for simplicity.