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MQSeries.net Forum IndexGeneral IBM MQ SupportPub/Sub - Pub set new MsgId

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zbyszanna
PostPosted: Thu Sep 28, 2017 3:50 am Post subject: Reply with quote

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Joined: 03 Feb 2012
Posts: 21

Yes, it can be guaranteed. As I said before, this is by design. Only one application will reply, the other will just receive the copy of the message flow.

We don't want to use different methods of correlation. That is the sole point of this exercise. We want to get a copy of message stream without the need of altering our applications. If we could force topics/subs to retain the msgid, it would be a perfect solution.
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fjb_saper
PostPosted: Fri Sep 29, 2017 5:47 am Post subject: Reply with quote

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Joined: 18 Nov 2003
Posts: 19382
Location: LI,NY

zbyszanna wrote:
Yes, it can be guaranteed. As I said before, this is by design. Only one application will reply, the other will just receive the copy of the message flow.

We don't want to use different methods of correlation. That is the sole point of this exercise. We want to get a copy of message stream without the need of altering our applications. If we could force topics/subs to retain the msgid, it would be a perfect solution.

In this case you need to get a little bit inventive in your pub/sub and make sure the subscription is not received by correlID (the default case). If the sender then sets the flag to generate a correlid and checks for that (minor change) you might be able to get away with it...
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RogerLacroix
PostPosted: Fri Sep 29, 2017 2:27 pm Post subject: Reply with quote

Jedi Knight

Joined: 15 May 2001
Posts: 3020
Location: London, ON Canada

zbyszanna wrote:
We don't want to use different methods of correlation. That is the sole point of this exercise. We want to get a copy of message stream without the need of altering our applications. If we could force topics/subs to retain the msgid, it would be a perfect solution.

Why don't you have a look at MQ Message Replication. Its whole purpose is to clone a message which includes MsgId.

Regards,
Roger Lacroix
Capitalware Inc.
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