This topic describes how to investigate why messages are not being consumed at a destination on a service integration bus, when the messages are being routed through a remote message point and the consuming application is running.
You should perform this task as part of either Investigating why point-to-point messages are not being consumed or Investigating why publish/subscribe messages are not arriving at a subscription. This task explains how to investigate the flow of messages in a scenario where the messages are being routed through a remote message point and the consuming application is started. The following diagrams illustrate two possible scenarios. In Figure 1, ME2 is the messaging engine that hosts the message point, and receives messages from the producing application through ME1. ME3 is the messaging engine that the consuming application is attached to, and hosts a remote message point which represents the message point on ME2. In Figure 2, ME2 and ME3 host publication points that are represented by remote publication points on ME1, where the producing application is attached. Subscribing application B is connected to ME3 and receives messages indirectly from ME1, via a subscription on ME2. a remote subscription point on ME 3. These messaging engines are referred to in the following steps.
In the following figure, a bus contains three messaging engines, ME1, ME2 and ME3. The producing application is connected to ME1 and the consuming application is connected to ME3. The messages are routed from ME1 to ME3 through ME2, and are consumed from ME3. This scenario is focused on ME2 and ME3. ME3 hosts a remote message point which represents the message point hosted by ME2.
In the following figure, a bus contains three messaging engines, ME1, ME2 and ME3. The publishing application is connected to ME1 and the subscribing applications are connected to ME2 and ME3. ME1 hosts remote publication points which represent the publication points hosted by ME2 and ME3. Subscribing application B is connected to ME3 and receives publications from ME1 through a remote subscription on ME2.
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