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| [Solved] MQ Series Message Retrival Question |
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| Wbrant |
 Posted: Fri Aug 22, 2003 7:35 pm Post subject: [Solved] MQ Series Message Retrival Question |
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Novice
Joined: 22 Aug 2003
Posts: 10
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HI, I hope there is a solution for me.
I currenlty am running MQSeries on a Solairs 2.8 plaform. I currently have a queue called in.queue. The queue currently has approximtely 90,000 messages in it.
What i would ideally like to do is have someway delivering the messageds to multiple clients. I.E. have the message remain in the queue in til 2 separate processes have retrived them.
Is there any such functionality or do i need to completely switch a topic.
Best Regards
Bill Brant |
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| EddieA |
| Posted: Fri Aug 22, 2003 9:10 pm Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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Not without using intermediate queues and a utility or application to take those messages and deliver each one to 2 different queues. Then each client could read from it's own queue.
Without doing that, you could browse with one application and get with another, but there's no way on knowing if the 'browsing' application has seen the message before the 'getting' application removes it from the queue. Unless you stop the sending application, then run the 'browsing' client and when that ends, run the 'getting' client. Messy. 
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| PeterPotkay |
| Posted: Mon Aug 25, 2003 2:37 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Lets say all the messages on the queue have blank CORRELIDs to start with.
The first app issues an MQGET asking for CorrelID of blank.
It proccesses any message it gets, changes the CorrelID to App1Yes, and puts it back to the queue (at the bottom of the queue).
Repeat until 2033 error (no more messages on the queue with a blank Correl ID.
The first app then does MQGETs asking for CORRELID of App2Yes.
It process any of these messages and then deletes them, since now both apps have processed them.
Repeat until 2033 error (no more messages that have processed App2)
App2 does the same thing only in reverse.
They can both be running at the same time a will very quickly process the entire queue.
_________________
Peter Potkay
Keep Calm and MQ On |
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| Wbrant |
| Posted: Sat Jan 17, 2004 12:30 pm Post subject: Thaniks |
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Novice
Joined: 22 Aug 2003
Posts: 10
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| Thanks for the great answers!! Really did help me out! |
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