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MQSeries.net Forum Index » General Discussion » how messages are read

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vibhu007
PostPosted: Fri Jan 06, 2006 5:17 pm    Post subject: how messages are read Reply with quote

Newbie

Joined: 29 Aug 2005
Posts: 6

Hi,

Assuming 2 systems writing paralled to an mq queue. The first system has written msgs in order 1, 3, 5 and then the second system in the order 2, 4, 6. The MQ received the message in the order 1, 2, ..6 .
Now the first system commits. Second system is yet to commit.
Now comes a reader and reads the first message 1. Now the second system commits. Will the reader next time get 2 or 3?

Thanks.
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EddieA
PostPosted: Fri Jan 06, 2006 6:34 pm    Post subject: Reply with quote

Jedi

Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles

Does it really matter. What are you trying to achieve. Remember, MQ is asynchronous.

If the order of processing is important, you should look into Grouping.

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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vibhu007
PostPosted: Wed Jan 11, 2006 6:13 pm    Post subject: Reply with quote

Newbie

Joined: 29 Aug 2005
Posts: 6

Thanks
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markt
PostPosted: Thu Jan 12, 2006 6:51 am    Post subject: Reply with quote

Knight

Joined: 14 May 2002
Posts: 508

what happens to happen is not necessarily what is guaranteed to happen or to continue to happen.
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