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  • 1.  Websphere MQ :: Dynamic Queues are generated during reading and writing messages to Queue

    Posted Wed May 17, 2023 04:59 AM

    Dynamic Queues are generated during reading and writing messages to Queue. We observed this for both Read and Write operations.

    Why do dynamic queues get generated and what is the option to disable this?




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    Ranjitha YM
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  • 2.  RE: Websphere MQ :: Dynamic Queues are generated during reading and writing messages to Queue

    IBM Champion
    Posted Wed May 17, 2023 05:54 AM

    Dynamic Queues are generated when your application makes use of a MODEL queue. Are you using a MODEL queue in your application? Can you tell us a bit more about your application so we can help you further.

    Cheers,
    Morag



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    Morag Hughson
    MQ Technical Education Specialist
    MQGem Software Limited
    Website: https://www.mqgem.com
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  • 3.  RE: Websphere MQ :: Dynamic Queues are generated during reading and writing messages to Queue

    Posted Wed May 17, 2023 07:45 AM

    we used IBMMQ 9.3 client, and using IBM explorer we created 4 local queues, apart from those we are able to some other queues 

    the below highlighted queues we created 



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    Ranjitha YM
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  • 4.  RE: Websphere MQ :: Dynamic Queues are generated during reading and writing messages to Queue

    IBM Champion
    Posted Thu May 18, 2023 09:00 PM

    MQ Explorer operates in the following way to create a queue.

    1. Puts a command message to the IBM MQ Command Server queue - SYSTEM.ADMIN.COMMAND.QUEUE - to request the queue be created
    2. Waits for the reply message which says OK or Failed to come back from the IBM MQ Command Server. This replyQ is always a temporary queue created by opening the MODEL queue SYSTEM.MQEXPLORER.REPLY.MODEL

    While some MQ Administration tools can be configured to use an explicit LOCAL queue as the replyQ instead of using a MODEL queue to created a temporary queue for the ReplyQ, this is not possible when using MQ Explorer.

    However, that said, you shouldn't need to worry about these temporary queues now that you know why they are there, unless for some reason they are not being tidied up when MQ Explorer disconnects from the queue manager.

    Perhaps you can tell us what has led you to notice these temporary queues and whether they are causing you any issues, or whether your question is just because you want to learn about them.

    Cheers,
    Morag



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    Morag Hughson
    MQ Technical Education Specialist
    MQGem Software Limited
    Website: https://www.mqgem.com
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