This topic describes how to investigate why publish/subscribe messages are not being received by a subscription on a service integration bus, when the messages are being routed through a remote message point.
Perform this task as part of Investigating why publish/subscribe messages are not arriving at a subscription. This task explains how to investigate the flow of messages in a publish/subscribe messaging scenario where the messages are being routed through a remote message point to a nondurable subscription. The following diagrams illustrates two possible situations. The dotted lines in the diagrams indicate relationships between publication points, whereas the solid lines indicate flow of messages. In Figure 1, ME1 is the messaging engine that the producing application is attached to, and ME2 and ME3 are the messaging engines that are hosting the subscriptions. The publication points on ME2 and ME3 are represented by remote publication points on ME1. In Figure 2, Subscribing application B, which is attached to ME3, has a durable subscription which receives messages through ME2, rather than directly from ME1. In order to do this, ME3 hosts a remote subscription, which represents the subscription on ME2. The messaging engines are referred to in the following steps.
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.
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.
The following steps apply to both the above scenarios.In this information ...Subtopics
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