You can maintain or change the sequence of messages in a message flow based on the sequence number and group ID contained in each message.
Information about the state of in-flight messages is held on system queues that are controlled by WebSphere MQ, so you must install WebSphere MQ on the same computer as your integration server if you want to use event driven processing.
The system queues that hold the state information are owned by the queue manager that is specified on the integration server. You associate a queue manager with the integration server by specifying the queue manager name on the defaultQueueManager property in the server.conf.yaml configuration file; for more information, see Configuring an integration server by using the server.conf.yaml file.
You must create the system queues by running a script command, as described in Creating the default system queues on a WebSphere MQ queue manager.
For more information about using WebSphere MQ with IBM App Connect Enterprise, see Installing IBM MQ.
The following topics describe the tasks involved in configuring message sequences:
The following topics provide examples of how to use a Resequence node, and show how the node processes messages in a message flow: