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| AggregateConrol Node |
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| Shek |
 Posted: Thu Jul 28, 2005 1:16 pm Post subject: AggregateConrol Node |
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Newbie
Joined: 18 Oct 2004
Posts: 6
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I am developing a fan-out message flow with aggregate control node and I can't see the second message from the Out terminal till the first one is processed completely even though the documentation says it's done in parallel. I tried with the debugger and also with a trace node and saw the same behavior. It appears the triggering of AggregateControl node is done in sequence instead of in parallel.
Is this correct or am I missing some other steps? I am running WBI version 5.0.5 Build id:20050520_1338.
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| wschutz |
| Posted: Thu Jul 28, 2005 4:45 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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I assume you mean this documentation:
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WebSphere Business Integration Message Broker provides three message flow nodes that support aggregation:
AggregateControl
AggregateRequest
AggregateReply
When you include these nodes in your message flows, the multiple fan-out requests are issued in parallel from within a message flow. This is in contrast to the standard operation of the message flow in which each node performs its processing in sequence. |
I think the document is trying to say that the MQ Messages wind up being issued in parallel, that is, if you fan-out to 3 request messages, the 3 "requests" can be done in parallel (the old "book a holiday example)
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-wayne |
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| Shek |
| Posted: Fri Jul 29, 2005 5:54 am Post subject: |
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Newbie
Joined: 18 Oct 2004
Posts: 6
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Yes. That's what the documentation said. I am trying to fan out only 2 AggregateRequest. But as I stepped them thru the debugger, they are done in sequence, not in parallel. I also put in trace node and record the timestamps. Again these timestamps are in sequence, not in parallel.
Any help is appreciated.
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| jefflowrey |
| Posted: Fri Jul 29, 2005 6:11 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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The inside of a message flow is always done in serial - a message flow is essentially a series of procedure calls, with each node being a procedure.
Events that happen outside a message flow can be accomplished in parallel.
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I am *not* the model of the modern major general. |
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