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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » Question on XML messages generated in workflow.

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ucbus1
PostPosted: Wed May 07, 2003 5:51 am    Post subject: Question on XML messages generated in workflow. Reply with quote

Knight

Joined: 30 Jan 2002
Posts: 560

Is there any way I can get all the XML messages generated/exchanged between various queues for a work instances, before it is finished in workflow?
Thanks
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vennela
PostPosted: Wed May 07, 2003 6:01 am    Post subject: Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India

Either I didn't quite understand your question or I am missing something here. Can you be more eloborate...

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Venny
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amittalekar
PostPosted: Wed May 07, 2003 6:03 am    Post subject: Reply with quote

Disciple

Joined: 03 Apr 2002
Posts: 166
Location: VA, USA

You can get only those XMLmessages that are generated by workflow and
put it on your defined UPES queue by workflow.....
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manoj
PostPosted: Wed May 07, 2003 9:34 am    Post subject: Reply with quote

Master

Joined: 30 Jan 2002
Posts: 237
Location: Virgina

i think u r interested to know the various activities going on within the life time of a workitem. i guess MQWF server communicates using SDDS and not in XML, but if you enable audit trailing (AUDIT TO MQQueue) you might be getting these messages in XML format (i 've n't done this though)
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ucbus1
PostPosted: Fri May 09, 2003 4:55 am    Post subject: Reply with quote

Knight

Joined: 30 Jan 2002
Posts: 560

Sorry for the confusion. This is my utopian concept.
When I instantiate a work instance the way I do is put an xml message that goes to "exexmlinputq" of FMCQM. OK... Now it goes thru various activities passing thru various queues and ultimately gets deleted out of workflow. While doing so, workflow generates some messages in XML, user applications generate some xml messages... But everything is with in one configuration FMC and with in MQ series. I have logging in the applications to log xml messages generated by them. However, these are not reliable as the logs may be deleted... applications are buggy. However, my queue managers are defined as persistent . So ideally i should be able to track the the messages generated/exchanges at every stop during the life span of a work instance. We have a utility called "vital signs" that tracks the life span of workinstance. But it does not give me the xmls exchanged during the span.

My idea is to have the xmls, suppose if an instance stopped at a particular activity say UPES, i would like to put the message back into the queue so that the instance would be processed from the point where it stopped.
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jmac
PostPosted: Fri May 09, 2003 5:16 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC

Ucbus:

Do you have MessageHandler also? I thought I recalled that you do.

If so you could log the messages there.
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amittalekar
PostPosted: Fri May 09, 2003 5:44 am    Post subject: Reply with quote

Disciple

Joined: 03 Apr 2002
Posts: 166
Location: VA, USA

Ucbus,

If u are logging the messages only to put message back in UpesQueue for processing then that may not be good idea. The better approach would be to put workflow generated XML message in other queue say ERRQUEUE if any error occurs. Then write a simple utility that will get the message from this ERRQUEUE and put it back in proper UPES queue for processing as & when u want.
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ucbus1
PostPosted: Fri May 09, 2003 5:46 am    Post subject: Reply with quote

Knight

Joined: 30 Jan 2002
Posts: 560

Jmac,
yes we do..But message Handler would not log, if an activity agets stuck in UPES like I have mentioned in my question "upes question 2".
thanks
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jmac
PostPosted: Fri May 09, 2003 5:59 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC

Ucbus:

You can get the incoming message logged if you use DEBUG level. Now I am not recommending that you do this if this is a Production system due to the overhead. If it is a test system change your loglevel to DEBUG and I think you will get what you are looking for.

GOOD LUCK
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