Use an Ultra Messaging source service to read data from a UM source application. To create an Ultra Messaging source service, use the Ultra Messaging source service type.
You can configure only one UM source on a node. If you try to configure a second UM source, there is a conflict in configuration and the second source service will not start.
If you have a data flow that contains a UM source service type, when you change the configuration of the source service, you must perform the following tasks for the changes to take effect:
- Undeploy the data flow.
- Stop the node.
- Start the node.
- Deploy the data flow.
When you use an Ultra Messaging source service in a data flow, you can only configure an Ultra Messaging data connection for the data flow.