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Connection between client qnd QM in a Cluster

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renzo88

Posted: Mon Jun 25, 2007 3:15 am Post subject: Connection between client qnd QM in a Cluster

Newbie

Joined: 02 Feb 2007
Posts: 5

Hi all,

I'm new in MQ Clustering and I encoutered a problem with a client connection here is the explanation :

I wan't to make a connection between a client (which is on a WIN server ) and QMgrs ( V 5.3 on unix ) which are located in a cluster.
I have 2 QMgrs QM1 and QM2, on each QMgrs I have the same instance of the Queue QLC. The client have to poll these queues to get messages but i can't do that with the variable MQSERVER ( because I can just define 1 QMgrs ) so here is another solution ?

Thks

Vitor

Posted: Mon Jun 25, 2007 3:34 am Post subject:

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

All clients only connect to a single queue manager; clustering doesn't change that. Hence to service both queues you need 2 instances for your application.

The thinking behind this is that clusters are designed for workload balancing, spilting the inbound messages between 1-n queue managers, typically sited on different machines to spread the resource load. There's no point to this if you then read all the messages with a single application instance; you might just as well save some time/resource & use a single queue manager!

Hope this clarifies things.
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