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| MQ Series in COBOL code question |
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| gsherin |
 Posted: Wed May 30, 2007 12:51 pm Post subject: MQ Series in COBOL code question |
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Newbie
Joined: 30 May 2007
Posts: 1
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I am totally new to MQ and have to do coding for it for my job as part of a fire drill here. I need to know how I would code for my message to expire from a queue in 5 minutes using MQPUT command. I know MQGET can remove messages but we aren't using it for what we need. I think the expiry parm is set as a -1 binary value in the copybook we are using.
Thanks anybody for your help in advance. |
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| Vitor |
| Posted: Wed May 30, 2007 1:02 pm Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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Expiry needs to be set in tenths of a second
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Insanity is the best defence.
Last edited by Vitor on Wed May 30, 2007 11:44 pm; edited 1 time in total |
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| Nigelg |
| Posted: Wed May 30, 2007 1:33 pm Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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From the APR, MQMD, Expiry:
| Quote: |
| This is a period of time expressed in tenths of a second, set by the application that puts the message |
As a rather wild stab in the dark, and assuming you know how to code in COBOL (I am rather rusty myself)
| Code: |
MOVE 3000 TO MQMD-EXPIRY.
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Look in /usr/mqm/inc/CMQMD1L, the copybook which declares the MQMD V1 structure.
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| Vitor |
| Posted: Wed May 30, 2007 11:53 pm Post subject: Re: MQ Series in COBOL code question |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| gsherin wrote: |
I think the expiry parm is set as a -1 binary value in the copybook we are using.
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Ah - finally twigged what you're saying!
Expiry defaults to the value -1 (message doesn't expire). You need to set a value to the number of tenths of a second you want the message to last, using a syntax very much like that suggested (my COBOL is equally rusty).
Note that expired messages can remain on the queue past their expiry time, so queue depth won't immediately drop. This is normal behaviour. These expired messages are not visible to an MQGET and cannot be picked up by an application.
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Insanity is the best defence. |
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