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| MQTRIG messages |
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| dmowskit |
 Posted: Wed Dec 29, 2004 7:31 am Post subject: MQTRIG messages |
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Novice
Joined: 22 Apr 2003
Posts: 10
Location: Poland
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Hi,
every trigger message should open INITQ queue with options allowed use MQGET. But if I use MQOPEN with ther option than MQOO_INQUIRE there are in this moment generated MQTRIG messages with headers as they come from each triggered queues has this my opened queue in INITQ field.
I can't understand why. Maybe someone know?
_________________
Tomasz Dmowski
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IBM Certified MQSeries Specialist
PROKOM SOFTWARE SA
Gdynia, Poland |
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| PeterPotkay |
| Posted: Wed Dec 29, 2004 8:30 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Tom,
I can't understand your question. Can you try asking it again more clearly?
_________________
Peter Potkay
Keep Calm and MQ On |
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| kevinf2349 |
| Posted: Wed Dec 29, 2004 10:52 am Post subject: |
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Grand Master
Joined: 28 Feb 2003
Posts: 1311
Location: USA
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I, like Peter, am not too sure what your question is but ...
You absolutely should expect MQTRIG messages on the INITQ. The INITQ should be GET and PUT enabled. The trigger monitor should be the only 'application' that has the INITQ open for input.
You should NOT place any application messages directly onto the INITQ unless you write it in trigger message format.
Does that help clear things up any? |
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| Nigelg |
| Posted: Wed Dec 29, 2004 11:10 am Post subject: |
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Grand Master
Joined: 02 Aug 2004
Posts: 1046
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If I understand your question correctly...
You have an initiation queue, for example called MY.INITQ, which is set as the INITQ attribute on a 10 (for example) local queues, When you open this queue for input, 10 trigger msgs are put to MY.INITQ.
This is the correct operation of the system. See the APG, Conditions for a trigger event, 8 & 9. When a queue is opened, all the queues which have the queue defined as the INITQ are checked to see whether all the other conditions for a trigger event are met. If so, a trigger msg is written to the INITQ.
This is the mechanism which starts triggered channels at qmgr startup if there are msgs on the channels' xmitqs.
Only a trigger monitor, like the supplied runmqtrm, or compiled from the sample source (I forget the file name) should open an initiation queue for input, and it should be prepared to read and process the trigger msgs to start the triggered apps. |
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| dmowskit |
| Posted: Wed Dec 29, 2004 1:29 pm Post subject: |
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Novice
Joined: 22 Apr 2003
Posts: 10
Location: Poland
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Thanks Nigelg, that was my question. I know that is correct but I understand why 
So tommorrow I look up to Application Programming Guide and answer to my boss
Thanks
Tomas
_________________
Tomasz Dmowski
____________________________
IBM Certified MQSeries Specialist
PROKOM SOFTWARE SA
Gdynia, Poland |
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