WebSphere WebSphere Application Server Network Deployment, Version 6.0.x Operating Systems: AIX, HP-UX, Linux, Solaris, Windows

Investigating why point-to-point messages are not being consumed

This topic describes how to investigate why point-to-point messages are not being consumed from a destination on a service integration bus.

Why and when to perform this task

Use this topic if you did not get a response in your application because a message you were expecting did not appear on a queue. The information in this topic applies to local and remote producers, and local and remote consumers.

Perform the following preliminary checks before starting the investigation:

Steps for this task

  1. Run the consuming application and check that messages are still not being consumed.
  2. Stop the consuming application.
  3. Determine which messaging engine is hosting the queue point to which messages are being produced. See Determining the location of message points for a destination on a service integration bus.
  4. Click Application servers -> server_name -> Messaging engines -> messaging_engine_name -> [Message points] Queue points -> queue_point_identifier -> [Runtime tab] Messages to view the messages on the queue point. Check that there are messages present that are in the 'Unlocked' state.
    • If there are no messages present, then there are no messages to consume. Run the producing application to produce a test message and check the queue again. If there are still no messages present, the test message has not arrived. Use the topic Investigating why point-to-point messages are not arriving to investigate the problem.
    • If there are messages present but they are not in the 'Unlocked' state, check for other consumers that are consuming from this queue point. If there are other consumers, stop them and repeat the investigation.
  5. Determine which messaging engine the consuming application is connected to. See Determining which messaging engine an application is connected to.

Task topic

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Last updated: 15 Mar 2007
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