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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Message delivery to queue from flow

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aks
PostPosted: Thu Jun 24, 2004 3:41 am    Post subject: Message delivery to queue from flow Reply with quote

Voyager

Joined: 19 Jul 2002
Posts: 84
In a single compute node with esql code to propagate a message to queue A and then to propagate a message to queue B on the same queue manager, is it possible for the message to arrive on queue B before the message arrives on queue A? Can different threads inside MQ deliver the messages out of the order they were propagated from the flow?

Thanks
Alan
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kt76
PostPosted: Thu Jun 24, 2004 4:42 am    Post subject: Reply with quote

Acolyte

Joined: 18 Jan 2004
Posts: 52
There is no concept of thread. However you can manipulate your flow and introduce a flow order node which put sthe message first on Q b and then on Q A
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zpat
PostPosted: Thu Jun 24, 2004 6:35 am    Post subject: Reply with quote

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK
Make the message flow transactional and both messages will appear at the same time (on the queue manager running the broker) when the entire unit of work is committed.

This also prevents one message appearing without the other in the event of a problem with the flow.

As to whether they will arrive in sequence, depends on where the target queues are located and how they get there.
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