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| Replace a message in a queue |
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| Bahan |
 Posted: Fri Sep 07, 2007 4:53 am Post subject: Replace a message in a queue |
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Apprentice
Joined: 16 Jul 2006
Posts: 47
Location: France
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Hi everyone.
I have a question about queue and message.
Is there a parameter that allows to substitute a message by another one in a queue of a queue manager in Websphere MQ 6 ?
I have the following system :
Computer 1
Windows 2000
Client MQ 5.2
Computer 2
Unix AIX 5.3
Server MQ 6.0
Computer 3
Windows XP
Client MQ 5.3
The computer 1 puts message into a queue Q of the queue manager QM in the computer 2 and the computer 3 gets this message a little bit later.
Do you know which doc I can maybe read to find the answer of my question ?
Thank you in advance.
Regards.
Bahan
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Close the world.||.txen eht nepO |
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| Vitor |
| Posted: Fri Sep 07, 2007 5:14 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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There are a number of utilities and support pacs that allow you to pull messages off a queue and add them to another one as an administrative, manual function.
There are tools that let you edit the message on a queue, though under the covers they read the old one off and add the new one on.
But if I'm correct what you're trying to do is get the message from computer 1 to computer 2 and computer 3? This implies a message put using a namelist / distribution list or similar.
Another, less desirable solution would be to use something like the mirrorq exit to duplicate the message arriving at 2 and send it to 3, though I'd be inclined to write an application rather than an exit. Exits are tricky and can cause serious problems, but I'll mention it before someone else does.
Does this answer your question or have I missunderstood?
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Honesty is the best policy.
Insanity is the best defence. |
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| fjb_saper |
| Posted: Fri Sep 07, 2007 5:14 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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There is not such thing. However you can set up an intermediary queue where your program would read from and post to the destination queue doing the substitution...
You could also use the message broker to do the transformation...
There are 1001 ways to skin this beast 
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MQ & Broker admin |
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| jefflowrey |
| Posted: Fri Sep 07, 2007 6:11 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I'm confused a bit.
| Quote: |
| The computer 1 puts message into a queue Q of the queue manager QM in the computer 2 and the computer 3 gets this message a little bit later. |
This is basic MQ.
Application 1 puts a message on a queue. Later, Application 2 gets that message from the queue.
In this case, there are clients on computer 1 and computer 3, and there's only one queue manager.
There's no apparent need for duplicating messages, or anything else.
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