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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » MQ Issue

MQ Issue

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sarasu

Posted: Wed Jun 07, 2006 10:25 am Post subject: MQ Issue

Master

Joined: 02 Feb 2006
Posts: 229

What is the maximum number of Uncommitted Messages that a Queue Manager can handle? By default in the proeprties of Queue Manager I found 10000. Untill what number this is going to handle?

In which order a queuemanager(QMGR) receive messages from two different systems having the same queuemenager(QMGR1)? Is it like firstin firstout?

If i use two queuemanagers instead of one queuemanger, will there be any performance change?

Any help is appreciated

Mr Butcher

Posted: Wed Jun 07, 2006 9:54 pm Post subject:

Padawan

Joined: 23 May 2005
Posts: 1716

1. the maximum you can specify is written in the command reference. but you should do some more reading, this parameter will affect your restart time / recovery time.

2. if you receive from 2 different qmgrs into a single queue and the queue is defined fifo, then the messages in the queue are in received order. becuase mq is asynchronous (to the application) the put order of the 2 sending qmgrs may not be what you see in the queue. applications should not rely on message sequence, and if you search for this you will find many posts here.

3. yes, eihter to the good or to the bad. it always depends on the applications and the way they work.
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Regards, Butcher

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