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| UserID in MQMD difference between 5.3 CSD04 & 6.0 |
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| ahaggkvist |
 Posted: Wed Oct 04, 2006 5:13 am Post subject: UserID in MQMD difference between 5.3 CSD04 & 6.0 |
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Newbie
Joined: 12 Oct 2004
Posts: 9
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Hi,
I have noticed a weird feature when we send messages between a 5.3 CSD04 Qmgr(QM1) and 6.0.1 Qmgr(QM2) on Solaris.
The flow looks like this:
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QM1 sends a message to remote queue RQ1(as user 'mqm') that points to LQ1 on QM2.
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When I look at the message on the xmitq on QM1 the UserID in the MQMD is 'mqm', but when I start the channel and look at the message on LQ1 on QM2 the UserID in the MQMD is 'MQM'.
This causes problems when the app retrieves the message and a COD is to be generated, as UserID 'MQM' has no access to MQ.
I have also tested this between 2 6.0.1 Qmgrs and then the UserID is 'mqm' on the local queue on the target QM.
Have also tested with a 5.3 CSD07 Qmgr and a 6.0.1 Qmgr and this also works.
Tried to look at the fixpacks to find any info on when this has been solved, but with no luck.
Has anyone seen this behaviour?
Regards
Andreas |
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| bruce2359 |
| Posted: Wed Oct 04, 2006 6:38 am Post subject: |
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Guest
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At MQPUT time (and the remote queue name resolves to a transmission queue), the qmgr creates the transmission queue header (xqh) that consists of your original application MQMD, the downstream qmgr name and downstream qname. The qmgr then creates a new MQMD and puts it to the xmitq.
So, to see your application MQMD you must look in the transmission queue header (xqh).
At the receiving end, the MCA (message channel agent) extracts from the xqh your application-created MQMD, and MQPUTs it and your application data into the remote queue named in the xqh.
The COD report message is created by the downstream qmgr, not the application.
To your specific question: MQMD's come in versions that the programmer specifies when building the MQMD. The versions remain constant. |
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| Nigelg |
| Posted: Wed Oct 04, 2006 7:29 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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This looks like IY81714; contact IBM for a fix.
_________________
MQSeries.net helps those who help themselves.. |
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| ahaggkvist |
| Posted: Wed Oct 04, 2006 10:52 pm Post subject: |
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Newbie
Joined: 12 Oct 2004
Posts: 9
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| Nigelg wrote: |
| This looks like IY81714; contact IBM for a fix. |
Yeah it sure does, I will contact IBM to get fix and test. We are also in the process of upgrading the 5.3 CSD04 box to v6 which also will solve the problem.
Thanks
A |
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