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| MQ Segmentation on OS/390 |
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| anveshita |
 Posted: Mon Jun 22, 2009 2:15 pm Post subject: MQ Segmentation on OS/390 |
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Master
Joined: 27 Sep 2004
Posts: 254
Location: Jambudweepam
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| Per the documentation I understand MQ does not allow segmentation in Mainframe( OS/390). If so how do they handle large messages. I am not sure of the mainframe world. We receive messages from Mainframe on to Unix environment and got the question how it is handled. |
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| Mr Butcher |
| Posted: Mon Jun 22, 2009 9:21 pm Post subject: |
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Padawan
Joined: 23 May 2005
Posts: 1716
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For current MQ versions message size limit is 100MB. For me, this is quite large and also large enough.
If this is not large enough for you and you are using z/OS, then you must code your own segmentation logic in the application, e.g. by splitting messages > 100mb into muiltiple parts < 100mb at the sender end. and you need a similiar logic at the receiving end to make it a single big message again.
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Regards, Butcher |
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| anveshita |
| Posted: Tue Jun 23, 2009 8:03 am Post subject: |
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Master
Joined: 27 Sep 2004
Posts: 254
Location: Jambudweepam
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Thanks.
So do u use Message Groups? If not how do you ensure the order of the message segments. I belive MQ assures delivery but not the order. |
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| bruce2359 |
| Posted: Tue Jun 23, 2009 9:46 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| I belive MQ assures delivery but not the order. |
Message Groups are supported in WMQ for z/OS v7. Order of delivery is achieved at the application-level by specifying MQGMO_LOGICAL_ORDER.
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