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Triggering on input queue to flow

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shogan2003

Posted: Thu Jul 03, 2003 12:15 am Post subject: Triggering on input queue to flow

Centurion

Joined: 03 Jul 2003
Posts: 133
Location: London

Hello Everyone

I have set up a trigger on a queue which also happens to be the input queue to a flow.

The trigger fires when broker is off but does not fire when broker is on.

Triggering type : First

Triggering will work when broker is on for any other queue in the flow.

Many thanks in advance for your advice

Craig B

Posted: Thu Jul 03, 2003 12:22 am Post subject:

Partisan

Joined: 18 Jun 2003
Posts: 316
Location: UK

If you read the Websphere MQ documentation regarding triggering then you will find that one of the conditions for triggering is that no application has the queue open for retrieving messages (MQOO_INPUT_*), The principle is that why trigger an application to retrieve messages from a queue that already has application retrieving message on that queue.

When your broker is started and you have a message flow set up to read that queue, then this will have the queue open for an MQOO_INPUT_*, and hence triggering conditions can never be met.
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Regards
Craig

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