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CSQUDLQH on z/OS - converting messages. |
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cd |
Posted: Wed Nov 19, 2008 5:49 am Post subject: CSQUDLQH on z/OS - converting messages. |
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 Novice
Joined: 16 May 2001 Posts: 20
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Hello All,
The environment:
z/OS 1.9
MQ for z/OS v6
I have messages that arrive on my z/OS queue managers' Dead Letter Queue that originated from another platform. I can browse my DLQ and while I can read the Dead Letter Header fields, the original message body is still in some other CCSID. I expect this.
When I run CSQUDLQH with ACTION(RETRY) or ACTION(FWD), the messages are being converted to the z/OS queue managers' CCSID when they are redirected to the appropriate target queue. Is there a way to prevent CSQUDLQH from reading the DLQ with MQGMO_CONVERT?
The chapter on CSQUDLQH in the Systems Administration Guide is silent on this topic, with no apparent rules table keyword available to control this. I would like to preserve the original message body exactly as it was originally sent to the z/OS queue manager. Yes, I can write my own, but I have no project funding for this.
Thanks.
Curt Dolny
Northwestern Mutual
Milwaukee, WI USA |
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rtsujimoto |
Posted: Wed Nov 19, 2008 6:41 am Post subject: |
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Centurion
Joined: 16 Jun 2004 Posts: 119 Location: Lake Success, NY
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Does the receving application process the message "as-is"? If it converts the message, what difference does it make if the DLQH converts when it requeues it? |
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Mr Butcher |
Posted: Wed Nov 19, 2008 7:33 am Post subject: |
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 Padawan
Joined: 23 May 2005 Posts: 1716
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afaik there is no way to prevent CSQUDLQH to use get_convert (never noticed that, btw) but i certainly could think of conditions where a get convert is not wanted.
i suggest you open at least a question at IBM, from my point of view it is a defect. the DLQH should not touch the message content, this also includes conversion. _________________ Regards, Butcher |
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cd |
Posted: Wed Nov 19, 2008 8:01 am Post subject: |
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 Novice
Joined: 16 May 2001 Posts: 20
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Virtually all of the receiving applications would do a Get w/Convert on the messages. We have strongly encouraged our app developers to send cross-platform messages using printable characters (plain text) only. That CSQUDLQH converts the messages before redirecting them to their correct destination should not matter. The application will issue a Get w/Convert and still get the same message value.
I will inquire with IBM to see what they have to say.
Thanks for your opinions.
Curt |
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