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MQSeries.net Forum Index » IBM MQ API Support » Segmented message Vs Logical Grouped Message

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kirani
PostPosted: Sun Jan 20, 2002 10:36 pm    Post subject: Reply with quote

Jedi Knight

Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA

What is the difference between "Segmented message" and "Logical Grouped message" in MQSeries. I know how to use Grouped messages using GroupId, MessageSeqNumber and MsgFlags. When would you use Segmented message and how? Can anyone tell me how to create those?

Thanks in advance.

Kiran
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kolban
PostPosted: Mon Jan 21, 2002 6:17 am    Post subject: Reply with quote

Grand Master

Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA

See the application programming guide - Chatpter 10.

http://www-4.ibm.com/software/ts/mqseries/library/manualsa/csqzal05/csqzal052f.htm#HDRHANDL

Message segmentation is used to move messages larger than allowed to flow over a channel or sit in a queue as a single message.
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bduncan
PostPosted: Mon Jan 21, 2002 3:11 pm    Post subject: Reply with quote

Padawan

Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley

Yeah, what he said
Typically, you'll want to use grouping when you have discrete data objects which should logically be associated, as oppossed to segmentation, where you have a single data object which you want to spread across multiple messages. This is usually done because the data object is larger than the maximum allowed for a single message in MQSeries, but can be done on smaller data objects for performance, etc...


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kirani
PostPosted: Mon Jan 21, 2002 3:14 pm    Post subject: Reply with quote

Jedi Knight

Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA

Thanks guys!
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