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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Scope of Aggregate Control node

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mqlover
PostPosted: Wed Mar 26, 2014 7:49 pm    Post subject: Scope of Aggregate Control node Reply with quote

Disciple

Joined: 25 Jul 2010
Posts: 176

Hi All,

Project 1 : We have a flow where we have used AggregateControl node. This is under EG say EG_1. We have reused the same flow for other project say Project 2 which performs the similar functionality as well, but this is under a different EG say EG_2. The aggregate control node has the same name in the properties tab.
Now, the project 1 is assuming that few msgs are being absorbed by Project 2 and this is because of the same Aggregate name though the queue names are different for project 1 and project 2.
I had thought that the Aggregate control node scope is only for a single EG.

Could anybody help me on this issue?
Thanks
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ganesh
PostPosted: Wed Mar 26, 2014 7:56 pm    Post subject: Reply with quote

Master

Joined: 18 Jul 2010
Posts: 294

http://www.ibm.com/developerworks/websphere/library/techarticles/1306_chakraborty/1306_chakraborty.html
Quote:
Fan-out and corresponding Fan-in flows are always in a single execution group


A quote from the above article, having same aggregation name in different EG's may not be the cause of your error.
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Simbu
PostPosted: Wed Mar 26, 2014 8:26 pm    Post subject: Reply with quote

Master

Joined: 17 Jun 2011
Posts: 289
Location: Tamil Nadu, India

Infocenter says
Quote:
The Aggregate Name must be contextually unique within a broker. You can have only one AggregateControl node and one AggregateReply node with a particular Aggregate Name, although you can have more than one AggregateControl node with the same Aggregate Name, see Using multiple AggregateControl nodes. Do not deploy a fan-in flow to multiple execution groups on the same broker; results are unpredictable.
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mqlover
PostPosted: Fri Mar 28, 2014 12:55 am    Post subject: Scope of Aggregate Control node Reply with quote

Disciple

Joined: 25 Jul 2010
Posts: 176

Thanks for the replies.
But still I am not very comfortable with the understanding that how does Aggregate node in project 2 uses the message from project 1.
I read a lot about aggregate nodes, but havent got a thorough understanding on this.

Can anybody please help me understand the concept that when such situation occurs and why?
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